15426913 has 2 divisors, whose sum is σ = 15426914. Its totient is φ = 15426912.

The previous prime is 15426911. The next prime is 15426919. The reversal of 15426913 is 31962451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15272464 + 154449 = 3908^2 + 393^2 .

It is a cyclic number.

It is not a de Polignac number, because 15426913 - 2¹ = 15426911 is a prime.

Together with 15426911, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (15426911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7713456 + 7713457.

It is an arithmetic number, because the mean of its divisors is an integer number (7713457).

Almost surely, 2^15426913 is an apocalyptic number.

It is an amenable number.

15426913 is a deficient number, since it is larger than the sum of its proper divisors (1).

15426913 is an equidigital number, since it uses as much as digits as its factorization.

15426913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 31.

The square root of 15426913 is about 3927.7109109506. The cubic root of 15426913 is about 248.9390398234.

The spelling of 15426913 in words is "fifteen million, four hundred twenty-six thousand, nine hundred thirteen".