156422155 has 16 divisors (see below), whose sum is σ = 198352800. Its totient is φ = 118091520.

The previous prime is 156422141. The next prime is 156422173. The reversal of 156422155 is 551224651.

It is not a de Polignac number, because 156422155 - 2¹¹ = 156420107 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 22495 + ... + 28615.

It is an arithmetic number, because the mean of its divisors is an integer number (12397050).

Almost surely, 2^156422155 is an apocalyptic number.

156422155 is a deficient number, since it is larger than the sum of its proper divisors (41930645).

156422155 is a wasteful number, since it uses less digits than its factorization.

156422155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6414.

The product of its digits is 12000, while the sum is 31.

The square root of 156422155 is about 12506.8843042542. The cubic root of 156422155 is about 538.8064114788.

The spelling of 156422155 in words is "one hundred fifty-six million, four hundred twenty-two thousand, one hundred fifty-five".