1157651275 has 24 divisors (see below), whose sum is σ = 1576019664. Its totient is φ = 836534400.

The previous prime is 1157651273. The next prime is 1157651293. The reversal of 1157651275 is 5721567511.

It is not a de Polignac number, because 1157651275 - 2¹ = 1157651273 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1157651273) 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, 29769 + ... + 56581.

It is an arithmetic number, because the mean of its divisors is an integer number (65667486).

Almost surely, 2^1157651275 is an apocalyptic number.

1157651275 is a deficient number, since it is larger than the sum of its proper divisors (418368389).

1157651275 is a wasteful number, since it uses less digits than its factorization.

1157651275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26991 (or 26986 counting only the distinct ones).

The product of its digits is 73500, while the sum is 40.

The square root of 1157651275 is about 34024.2747902141. The cubic root of 1157651275 is about 1050.0079440064.

The spelling of 1157651275 in words is "one billion, one hundred fifty-seven million, six hundred fifty-one thousand, two hundred seventy-five".