156228215 has 32 divisors (see below), whose sum is σ = 233222976. Its totient is φ = 98703360.

The previous prime is 156228209. The next prime is 156228221. The reversal of 156228215 is 512822651.

It is an interprime number because it is at equal distance from previous prime (156228209) and next prime (156228221).

It is not a de Polignac number, because 156228215 - 2⁴ = 156228199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5729 + ... + 18581.

It is an arithmetic number, because the mean of its divisors is an integer number (7288218).

Almost surely, 2^156228215 is an apocalyptic number.

156228215 is a deficient number, since it is larger than the sum of its proper divisors (76994761).

156228215 is a wasteful number, since it uses less digits than its factorization.

156228215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12899.

The product of its digits is 9600, while the sum is 32.

The square root of 156228215 is about 12499.1285696244. The cubic root of 156228215 is about 538.5836396860.

The spelling of 156228215 in words is "one hundred fifty-six million, two hundred twenty-eight thousand, two hundred fifteen".