1157479155 has 24 divisors (see below), whose sum is σ = 2292911712. Its totient is φ = 529133184.

The previous prime is 1157479139. The next prime is 1157479157. The reversal of 1157479155 is 5519747511.

1157479155 is a `hidden beast` number, since 1 + 1 + 574 + 79 + 1 + 5 + 5 = 666.

It is not a de Polignac number, because 1157479155 - 2⁴ = 1157479139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1157479155.

It is not an unprimeable number, because it can be changed into a prime (1157479157) 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, 1836954 + ... + 1837583.

It is an arithmetic number, because the mean of its divisors is an integer number (95537988).

Almost surely, 2^1157479155 is an apocalyptic number.

1157479155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1157479155 is a deficient number, since it is larger than the sum of its proper divisors (1135432557).

1157479155 is a wasteful number, since it uses less digits than its factorization.

1157479155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3674555 (or 3674552 counting only the distinct ones).

The product of its digits is 220500, while the sum is 45.

The square root of 1157479155 is about 34021.7453256002. The cubic root of 1157479155 is about 1049.9559029100.

The spelling of 1157479155 in words is "one billion, one hundred fifty-seven million, four hundred seventy-nine thousand, one hundred fifty-five".