15456013 has 2 divisors, whose sum is σ = 15456014. Its totient is φ = 15456012.

The previous prime is 15455989. The next prime is 15456031. The reversal of 15456013 is 31065451.

Together with next prime (15456031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14115049 + 1340964 = 3757^2 + 1158^2 .

It is an emirp because it is prime and its reverse (31065451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15456013 - 2⁵ = 15455981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15456083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7728006 + 7728007.

It is an arithmetic number, because the mean of its divisors is an integer number (7728007).

Almost surely, 2^15456013 is an apocalyptic number.

It is an amenable number.

15456013 is a deficient number, since it is larger than the sum of its proper divisors (1).

15456013 is an equidigital number, since it uses as much as digits as its factorization.

15456013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 15456013 is about 3931.4136134475. The cubic root of 15456013 is about 249.0954672289.

The spelling of 15456013 in words is "fifteen million, four hundred fifty-six thousand, thirteen".