155928227 has 8 divisors (see below), whose sum is σ = 191911776. Its totient is φ = 123371712.

The previous prime is 155928221. The next prime is 155928239. The reversal of 155928227 is 722829551.

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

It is a cyclic number.

It is not a de Polignac number, because 155928227 - 2¹⁶ = 155862691 is a prime.

It is a super-2 number, since 2×155928227² = 48627223950727058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155928221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 856658 + ... + 856839.

It is an arithmetic number, because the mean of its divisors is an integer number (23988972).

Almost surely, 2^155928227 is an apocalyptic number.

155928227 is a deficient number, since it is larger than the sum of its proper divisors (35983549).

155928227 is a wasteful number, since it uses less digits than its factorization.

155928227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713517.

The product of its digits is 100800, while the sum is 41.

The square root of 155928227 is about 12487.1224467449. The cubic root of 155928227 is about 538.2386909976.

The spelling of 155928227 in words is "one hundred fifty-five million, nine hundred twenty-eight thousand, two hundred twenty-seven".