14720731 has 2 divisors, whose sum is σ = 14720732. Its totient is φ = 14720730.

The previous prime is 14720711. The next prime is 14720767. The reversal of 14720731 is 13702741.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 14720731 - 2⁹ = 14720219 is a prime.

It is a super-2 number, since 2×14720731² = 433399842348722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 14720696 and 14720705.

It is not a weakly prime, because it can be changed into another prime (14720711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7360365 + 7360366.

It is an arithmetic number, because the mean of its divisors is an integer number (7360366).

Almost surely, 2^14720731 is an apocalyptic number.

14720731 is a deficient number, since it is larger than the sum of its proper divisors (1).

14720731 is an equidigital number, since it uses as much as digits as its factorization.

14720731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 14720731 is about 3836.7604824904. The cubic root of 14720731 is about 245.0810838103.

It can be divided in two parts, 14720 and 731, that added together give a palindrome (15451).

The spelling of 14720731 in words is "fourteen million, seven hundred twenty thousand, seven hundred thirty-one".