15073813 has 2 divisors, whose sum is σ = 15073814. Its totient is φ = 15073812.

The previous prime is 15073811. The next prime is 15073819. The reversal of 15073813 is 31837051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14691889 + 381924 = 3833^2 + 618^2 .

It is a cyclic number.

It is not a de Polignac number, because 15073813 - 2¹ = 15073811 is a prime.

Together with 15073811, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15073811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7536906 + 7536907.

It is an arithmetic number, because the mean of its divisors is an integer number (7536907).

Almost surely, 2^15073813 is an apocalyptic number.

It is an amenable number.

15073813 is a deficient number, since it is larger than the sum of its proper divisors (1).

15073813 is an equidigital number, since it uses as much as digits as its factorization.

15073813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 15073813 is about 3882.5008692852. The cubic root of 15073813 is about 247.0250757213.

The spelling of 15073813 in words is "fifteen million, seventy-three thousand, eight hundred thirteen".