238131225 has 48 divisors (see below), whose sum is σ = 438930240. Its totient is φ = 126576000.

The previous prime is 238131211. The next prime is 238131241. The reversal of 238131225 is 522131832.

It is not a de Polignac number, because 238131225 - 2⁵ = 238131193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 395925 + ... + 396525.

It is an arithmetic number, because the mean of its divisors is an integer number (9144380).

Almost surely, 2^238131225 is an apocalyptic number.

238131225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

238131225 is a deficient number, since it is larger than the sum of its proper divisors (200799015).

238131225 is a wasteful number, since it uses less digits than its factorization.

238131225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207 (or 1196 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 238131225 is about 15431.5010611411. The cubic root of 238131225 is about 619.8293191290.

The spelling of 238131225 in words is "two hundred thirty-eight million, one hundred thirty-one thousand, two hundred twenty-five".