1157678159 has 8 divisors (see below), whose sum is σ = 1317831552. Its totient is φ = 1006676440.

The previous prime is 1157678153. The next prime is 1157678177. The reversal of 1157678159 is 9518767511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1157678159 - 2⁸ = 1157677903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157678153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2287649 + ... + 2288154.

It is an arithmetic number, because the mean of its divisors is an integer number (164728944).

Almost surely, 2^1157678159 is an apocalyptic number.

1157678159 is a deficient number, since it is larger than the sum of its proper divisors (160153393).

1157678159 is a wasteful number, since it uses less digits than its factorization.

1157678159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4575837.

The product of its digits is 529200, while the sum is 50.

The square root of 1157678159 is about 34024.6698587951. The cubic root of 1157678159 is about 1050.0160720140.

The spelling of 1157678159 in words is "one billion, one hundred fifty-seven million, six hundred seventy-eight thousand, one hundred fifty-nine".