155915229 has 16 divisors (see below), whose sum is σ = 220608000. Its totient is φ = 97736496.

The previous prime is 155915203. The next prime is 155915257. The reversal of 155915229 is 922519551.

It is not a de Polignac number, because 155915229 - 2⁷ = 155915101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155915429) 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, 15079 + ... + 23220.

It is an arithmetic number, because the mean of its divisors is an integer number (13788000).

Almost surely, 2^155915229 is an apocalyptic number.

It is an amenable number.

155915229 is a deficient number, since it is larger than the sum of its proper divisors (64692771).

155915229 is a wasteful number, since it uses less digits than its factorization.

155915229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38384.

The product of its digits is 40500, while the sum is 39.

The square root of 155915229 is about 12486.6019797221. The cubic root of 155915229 is about 538.2237349266.

The spelling of 155915229 in words is "one hundred fifty-five million, nine hundred fifteen thousand, two hundred twenty-nine".