13802431 has 2 divisors, whose sum is σ = 13802432. Its totient is φ = 13802430.

The previous prime is 13802429. The next prime is 13802447. The reversal of 13802431 is 13420831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13802431 - 2¹ = 13802429 is a prime.

It is a super-2 number, since 2×13802431² = 381014203019522, which contains 22 as substring.

Together with 13802429, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13805431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6901215 + 6901216.

It is an arithmetic number, because the mean of its divisors is an integer number (6901216).

Almost surely, 2^13802431 is an apocalyptic number.

13802431 is a deficient number, since it is larger than the sum of its proper divisors (1).

13802431 is an equidigital number, since it uses as much as digits as its factorization.

13802431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 13802431 is about 3715.1623113937. The cubic root of 13802431 is about 239.8751144244.

The spelling of 13802431 in words is "thirteen million, eight hundred two thousand, four hundred thirty-one".