155363238 has 32 divisors (see below), whose sum is σ = 365562720. Its totient is φ = 48741120.

The previous prime is 155363233. The next prime is 155363239. The reversal of 155363238 is 832363551.

155363238 is a `hidden beast` number, since 15 + 5 + 3 + 632 + 3 + 8 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155363233) 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 15 ways as a sum of consecutive naturals, for example, 83703 + ... + 85538.

It is an arithmetic number, because the mean of its divisors is an integer number (11423835).

Almost surely, 2^155363238 is an apocalyptic number.

155363238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

155363238 is an abundant number, since it is smaller than the sum of its proper divisors (210199482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155363238 is a wasteful number, since it uses less digits than its factorization.

155363238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169269 (or 169263 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 155363238 is about 12464.4790504858. The cubic root of 155363238 is about 537.5878210929.

The spelling of 155363238 in words is "one hundred fifty-five million, three hundred sixty-three thousand, two hundred thirty-eight".