238975129 has 8 divisors (see below), whose sum is σ = 249524352. Its totient is φ = 228439200.

The previous prime is 238975111. The next prime is 238975151. The reversal of 238975129 is 921579832.

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 238975129 - 2¹⁹ = 238450841 is a prime.

It is a super-2 number, since 2×238975129² = 114218224561133282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238975159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56637 + ... + 60709.

It is an arithmetic number, because the mean of its divisors is an integer number (31190544).

Almost surely, 2^238975129 is an apocalyptic number.

It is an amenable number.

238975129 is a deficient number, since it is larger than the sum of its proper divisors (10549223).

238975129 is a wasteful number, since it uses less digits than its factorization.

238975129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6647.

The product of its digits is 272160, while the sum is 46.

The square root of 238975129 is about 15458.8204271865. The cubic root of 238975129 is about 620.5606522444.

The spelling of 238975129 in words is "two hundred thirty-eight million, nine hundred seventy-five thousand, one hundred twenty-nine".