15714731 has 2 divisors, whose sum is σ = 15714732. Its totient is φ = 15714730.

The previous prime is 15714719. The next prime is 15714733. The reversal of 15714731 is 13741751.

It is a strong prime.

It is an emirp because it is prime and its reverse (13741751) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15714731 is a prime.

It is a super-2 number, since 2×15714731² = 493905540804722, which contains 22 as substring.

Together with 15714733, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 15714694 and 15714703.

It is not a weakly prime, because it can be changed into another prime (15714733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7857365 + 7857366.

It is an arithmetic number, because the mean of its divisors is an integer number (7857366).

Almost surely, 2^15714731 is an apocalyptic number.

15714731 is a deficient number, since it is larger than the sum of its proper divisors (1).

15714731 is an equidigital number, since it uses as much as digits as its factorization.

15714731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2940, while the sum is 29.

The square root of 15714731 is about 3964.1809999040. The cubic root of 15714731 is about 250.4776521458.

The spelling of 15714731 in words is "fifteen million, seven hundred fourteen thousand, seven hundred thirty-one".