238158825 has 48 divisors (see below), whose sum is σ = 425776320. Its totient is φ = 117054720.

The previous prime is 238158799. The next prime is 238158827. The reversal of 238158825 is 528851832.

It is not a de Polignac number, because 238158825 - 2⁵ = 238158793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238158827) 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 47 ways as a sum of consecutive naturals, for example, 50467 + ... + 54983.

It is an arithmetic number, because the mean of its divisors is an integer number (8870340).

Almost surely, 2^238158825 is an apocalyptic number.

238158825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

238158825 is a deficient number, since it is larger than the sum of its proper divisors (187617495).

238158825 is a wasteful number, since it uses less digits than its factorization.

238158825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4586 (or 4581 counting only the distinct ones).

The product of its digits is 153600, while the sum is 42.

The square root of 238158825 is about 15432.3953098668. The cubic root of 238158825 is about 619.8532647894.

It can be divided in two parts, 23815 and 8825, that added together give a triangular number (32640 = T₂₅₅).

The spelling of 238158825 in words is "two hundred thirty-eight million, one hundred fifty-eight thousand, eight hundred twenty-five".