238598131 has 2 divisors, whose sum is σ = 238598132. Its totient is φ = 238598130.

The previous prime is 238598117. The next prime is 238598153. The reversal of 238598131 is 131895832.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 238598131 - 2¹⁵ = 238565363 is a prime.

It is a super-2 number, since 2×238598131² = 113858136233386322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (238598531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119299065 + 119299066.

It is an arithmetic number, because the mean of its divisors is an integer number (119299066).

Almost surely, 2^238598131 is an apocalyptic number.

238598131 is a deficient number, since it is larger than the sum of its proper divisors (1).

238598131 is an equidigital number, since it uses as much as digits as its factorization.

238598131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 40.

The square root of 238598131 is about 15446.6219931738. The cubic root of 238598131 is about 620.2341562651.

The spelling of 238598131 in words is "two hundred thirty-eight million, five hundred ninety-eight thousand, one hundred thirty-one".