1157451651 has 6 divisors (see below), whose sum is σ = 1671874620. Its totient is φ = 771634428.

The previous prime is 1157451629. The next prime is 1157451653. The reversal of 1157451651 is 1561547511.

1157451651 is a `hidden beast` number, since 1 + 157 + 451 + 6 + 51 = 666.

It is not a de Polignac number, because 1157451651 - 2⁶ = 1157451587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1157451653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64302861 + ... + 64302878.

It is an arithmetic number, because the mean of its divisors is an integer number (278645770).

Almost surely, 2^1157451651 is an apocalyptic number.

1157451651 is a deficient number, since it is larger than the sum of its proper divisors (514422969).

1157451651 is a wasteful number, since it uses less digits than its factorization.

1157451651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128605745 (or 128605742 counting only the distinct ones).

The product of its digits is 21000, while the sum is 36.

The square root of 1157451651 is about 34021.3411111320. The cubic root of 1157451651 is about 1049.9475864993.

The spelling of 1157451651 in words is "one billion, one hundred fifty-seven million, four hundred fifty-one thousand, six hundred fifty-one".