529117931 has 2 divisors, whose sum is σ = 529117932. Its totient is φ = 529117930.

The previous prime is 529117913. The next prime is 529117933. The reversal of 529117931 is 139711925.

Together with previous prime (529117913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-529117931 is a prime.

It is a super-2 number, since 2×529117931² = 559931569811441522, which contains 22 as substring.

Together with 529117933, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (529117933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264558965 + 264558966.

It is an arithmetic number, because the mean of its divisors is an integer number (264558966).

Almost surely, 2^529117931 is an apocalyptic number.

529117931 is a deficient number, since it is larger than the sum of its proper divisors (1).

529117931 is an equidigital number, since it uses as much as digits as its factorization.

529117931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17010, while the sum is 38.

The square root of 529117931 is about 23002.5635745236. The cubic root of 529117931 is about 808.8180347710.

The spelling of 529117931 in words is "five hundred twenty-nine million, one hundred seventeen thousand, nine hundred thirty-one".