1151445312 has 84 divisors (see below), whose sum is σ = 3380977236. Its totient is φ = 374446080.

The previous prime is 1151445311. The next prime is 1151445313. The reversal of 1151445312 is 2135441511.

1151445312 is a `hidden beast` number, since 115 + 14 + 4 + 531 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1151445311) and next prime (1151445313).

It can be written as a sum of positive squares in 2 ways, for example, as 118722816 + 1032722496 = 10896^2 + 32136^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151445311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 763 + ... + 47994.

It is an arithmetic number, because the mean of its divisors is an integer number (40249729).

Almost surely, 2^1151445312 is an apocalyptic number.

1151445312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1151445312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1690488618).

1151445312 is an abundant number, since it is smaller than the sum of its proper divisors (2229531924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1151445312 is a wasteful number, since it uses less digits than its factorization.

1151445312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48816 (or 48803 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 1151445312 is about 33932.9531871306. The cubic root of 1151445312 is about 1048.1282790744.

Adding to 1151445312 its reverse (2135441511), we get a palindrome (3286886823).

The spelling of 1151445312 in words is "one billion, one hundred fifty-one million, four hundred forty-five thousand, three hundred twelve".