1151521312 has 48 divisors (see below), whose sum is σ = 2372932800. Its totient is φ = 549027072.

The previous prime is 1151521303. The next prime is 1151521321. The reversal of 1151521312 is 2131251511.

It is an interprime number because it is at equal distance from previous prime (1151521303) and next prime (1151521321).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254623 + ... + 259105.

It is an arithmetic number, because the mean of its divisors is an integer number (49436100).

Almost surely, 2^1151521312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1151521312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1186466400).

1151521312 is an abundant number, since it is smaller than the sum of its proper divisors (1221411488).

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

1151521312 is a wasteful number, since it uses less digits than its factorization.

1151521312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4865 (or 4857 counting only the distinct ones).

The product of its digits is 300, while the sum is 22.

The square root of 1151521312 is about 33934.0730240270. The cubic root of 1151521312 is about 1048.1513387879.

Adding to 1151521312 its reverse (2131251511), we get a palindrome (3282772823).

The spelling of 1151521312 in words is "one billion, one hundred fifty-one million, five hundred twenty-one thousand, three hundred twelve".