1157645530 has 32 divisors (see below), whose sum is σ = 2109602880. Its totient is φ = 457336320.

The previous prime is 1157645507. The next prime is 1157645543. The reversal of 1157645530 is 355467511.

It is a self number, because there is not a number n which added to its sum of digits gives 1157645530.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 638325 + ... + 640135.

It is an arithmetic number, because the mean of its divisors is an integer number (65925090).

Almost surely, 2^1157645530 is an apocalyptic number.

1157645530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1157645530 is a deficient number, since it is larger than the sum of its proper divisors (951957350).

1157645530 is a wasteful number, since it uses less digits than its factorization.

1157645530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574.

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 1157645530 is about 34024.1903650917. The cubic root of 1157645530 is about 1050.0062070684.

The spelling of 1157645530 in words is "one billion, one hundred fifty-seven million, six hundred forty-five thousand, five hundred thirty".