13940226731 has 2 divisors, whose sum is σ = 13940226732. Its totient is φ = 13940226730.

The previous prime is 13940226701. The next prime is 13940226733. The reversal of 13940226731 is 13762204931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13940226731 - 2¹⁰ = 13940225707 is a prime.

It is a super-2 number, since 2×13940226731² (a number of 21 digits) contains 22 as substring.

Together with 13940226733, 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 (13940226733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6970113365 + 6970113366.

It is an arithmetic number, because the mean of its divisors is an integer number (6970113366).

Almost surely, 2^13940226731 is an apocalyptic number.

13940226731 is a deficient number, since it is larger than the sum of its proper divisors (1).

13940226731 is an equidigital number, since it uses as much as digits as its factorization.

13940226731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The spelling of 13940226731 in words is "thirteen billion, nine hundred forty million, two hundred twenty-six thousand, seven hundred thirty-one".