913235431 has 2 divisors, whose sum is σ = 913235432. Its totient is φ = 913235430.

The previous prime is 913235429. The next prime is 913235489. The reversal of 913235431 is 134532319.

It is a weak prime.

It is an emirp because it is prime and its reverse (134532319) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 913235431 - 2¹ = 913235429 is a prime.

It is a super-2 number, since 2×913235431² = 1667997904867511522, which contains 22 as substring.

Together with 913235429, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 913235393 and 913235402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (913235731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456617715 + 456617716.

It is an arithmetic number, because the mean of its divisors is an integer number (456617716).

Almost surely, 2^913235431 is an apocalyptic number.

913235431 is a deficient number, since it is larger than the sum of its proper divisors (1).

913235431 is an equidigital number, since it uses as much as digits as its factorization.

913235431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 31.

The square root of 913235431 is about 30219.7854227988. The cubic root of 913235431 is about 970.1992119274.

The spelling of 913235431 in words is "nine hundred thirteen million, two hundred thirty-five thousand, four hundred thirty-one".