1151346312 has 80 divisors (see below), whose sum is σ = 3245662860. Its totient is φ = 381303936.

The previous prime is 1151346307. The next prime is 1151346319. The reversal of 1151346312 is 2136431511.

It is a happy number.

1151346312 is a `hidden beast` number, since 1 + 1 + 5 + 1 + 346 + 312 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1105296516 + 46049796 = 33246^2 + 6786^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1151346319) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 96078 + ... + 107394.

Almost surely, 2^1151346312 is an apocalyptic number.

1151346312 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 1151346312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1622831430).

1151346312 is an abundant number, since it is smaller than the sum of its proper divisors (2094316548).

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

1151346312 is a wasteful number, since it uses less digits than its factorization.

1151346312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11492 (or 11479 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1151346312 is about 33931.4943967990. The cubic root of 1151346312 is about 1048.0982392417.

Adding to 1151346312 its reverse (2136431511), we get a palindrome (3287777823).

The spelling of 1151346312 in words is "one billion, one hundred fifty-one million, three hundred forty-six thousand, three hundred twelve".