155831159 has 16 divisors (see below), whose sum is σ = 172363776. Its totient is φ = 139708800.

The previous prime is 155831153. The next prime is 155831167. The reversal of 155831159 is 951138551.

It is not a de Polignac number, because 155831159 - 2⁸ = 155830903 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155831153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 462239 + ... + 462575.

It is an arithmetic number, because the mean of its divisors is an integer number (10772736).

Almost surely, 2^155831159 is an apocalyptic number.

155831159 is a deficient number, since it is larger than the sum of its proper divisors (16532617).

155831159 is a wasteful number, since it uses less digits than its factorization.

155831159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806.

The product of its digits is 27000, while the sum is 38.

The square root of 155831159 is about 12483.2351175487. The cubic root of 155831159 is about 538.1269802033.

The spelling of 155831159 in words is "one hundred fifty-five million, eight hundred thirty-one thousand, one hundred fifty-nine".