1157456465 has 24 divisors (see below), whose sum is σ = 1531108224. Its totient is φ = 833048000.

The previous prime is 1157456449. The next prime is 1157456467. The reversal of 1157456465 is 5646547511.

It is a happy number.

It is not a de Polignac number, because 1157456465 - 2⁴ = 1157456449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1157456467) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 560024 + ... + 562086.

It is an arithmetic number, because the mean of its divisors is an integer number (63796176).

Almost surely, 2^1157456465 is an apocalyptic number.

It is an amenable number.

1157456465 is a deficient number, since it is larger than the sum of its proper divisors (373651759).

1157456465 is a wasteful number, since it uses less digits than its factorization.

1157456465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281 (or 2180 counting only the distinct ones).

The product of its digits is 504000, while the sum is 44.

The square root of 1157456465 is about 34021.4118607679. The cubic root of 1157456465 is about 1049.9490421226.

The spelling of 1157456465 in words is "one billion, one hundred fifty-seven million, four hundred fifty-six thousand, four hundred sixty-five".