238574131 has 2 divisors, whose sum is σ = 238574132. Its totient is φ = 238574130.

The previous prime is 238574117. The next prime is 238574143. The reversal of 238574131 is 131475832.

238574131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238574131 - 2⁵ = 238574099 is a prime.

It is a super-2 number, since 2×238574131² = 113835231964810322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (238571131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119287065 + 119287066.

It is an arithmetic number, because the mean of its divisors is an integer number (119287066).

Almost surely, 2^238574131 is an apocalyptic number.

238574131 is a deficient number, since it is larger than the sum of its proper divisors (1).

238574131 is an equidigital number, since it uses as much as digits as its factorization.

238574131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 34.

The square root of 238574131 is about 15445.8451047523. The cubic root of 238574131 is about 620.2133596243.

The spelling of 238574131 in words is "two hundred thirty-eight million, five hundred seventy-four thousand, one hundred thirty-one".