238031 has 2 divisors, whose sum is σ = 238032. Its totient is φ = 238030.

The previous prime is 238019. The next prime is 238037. The reversal of 238031 is 130832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238031 - 2⁶ = 237967 is a prime.

It is a super-2 number, since 2×238031² = 113317513922, which contains 22 as substring.

It is a Chen prime.

It is equal to p₂₁₀₅₉ and since 238031 and 21059 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119015 + 119016.

It is an arithmetic number, because the mean of its divisors is an integer number (119016).

2²³⁸⁰³¹ is an apocalyptic number.

238031 is a deficient number, since it is larger than the sum of its proper divisors (1).

238031 is an equidigital number, since it uses as much as digits as its factorization.

238031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 238031 is about 487.8842075739. The cubic root of 238031 is about 61.9742348719.

Adding to 238031 its reverse (130832), we get a palindrome (368863).

The spelling of 238031 in words is "two hundred thirty-eight thousand, thirty-one".