238883531 has 2 divisors, whose sum is σ = 238883532. Its totient is φ = 238883530.

The previous prime is 238883479. The next prime is 238883539. The reversal of 238883531 is 135388832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238883531 - 2¹⁴ = 238867147 is a prime.

It is a super-2 number, since 2×238883531² = 114130682766055922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (238883539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119441765 + 119441766.

It is an arithmetic number, because the mean of its divisors is an integer number (119441766).

Almost surely, 2^238883531 is an apocalyptic number.

238883531 is a deficient number, since it is larger than the sum of its proper divisors (1).

238883531 is an equidigital number, since it uses as much as digits as its factorization.

238883531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 41.

The square root of 238883531 is about 15455.8574980491. The cubic root of 238883531 is about 620.4813561563.

The spelling of 238883531 in words is "two hundred thirty-eight million, eight hundred eighty-three thousand, five hundred thirty-one".