238147975 has 24 divisors (see below), whose sum is σ = 325434032. Its totient is φ = 171763200.

The previous prime is 238147963. The next prime is 238147979. The reversal of 238147975 is 579741832.

It is not a de Polignac number, because 238147975 - 2²¹ = 236050823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238147979) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5455 + ... + 22495.

Almost surely, 2^238147975 is an apocalyptic number.

238147975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

238147975 is a deficient number, since it is larger than the sum of its proper divisors (87286057).

238147975 is a wasteful number, since it uses less digits than its factorization.

238147975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17107 (or 17102 counting only the distinct ones).

The product of its digits is 423360, while the sum is 46.

The square root of 238147975 is about 15432.0437726181. The cubic root of 238147975 is about 619.8438515892.

The spelling of 238147975 in words is "two hundred thirty-eight million, one hundred forty-seven thousand, nine hundred seventy-five".