1157227512 has 48 divisors (see below), whose sum is σ = 3365409960. Its totient is φ = 330636096.

The previous prime is 1157227507. The next prime is 1157227541. The reversal of 1157227512 is 2157227511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 490843 + ... + 493194.

Almost surely, 2^1157227512 is an apocalyptic number.

1157227512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1157227512 is an abundant number, since it is smaller than the sum of its proper divisors (2208182448).

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

1157227512 is a wasteful number, since it uses less digits than its factorization.

1157227512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984060 (or 984049 counting only the distinct ones).

The product of its digits is 9800, while the sum is 33.

The square root of 1157227512 is about 34018.0468575137. The cubic root of 1157227512 is about 1049.8798084646.

Subtracting 1157227512 from its reverse (2157227511), we obtain a palindrome (999999999).

The spelling of 1157227512 in words is "one billion, one hundred fifty-seven million, two hundred twenty-seven thousand, five hundred twelve".