15135013 has 4 divisors (see below), whose sum is σ = 15656940. Its totient is φ = 14613088.

The previous prime is 15134993. The next prime is 15135019. The reversal of 15135013 is 31053151.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7306209 + 7828804 = 2703^2 + 2798^2 .

It is a cyclic number.

It is not a de Polignac number, because 15135013 - 2⁹ = 15134501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15135019) 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 in 3 ways as a sum of consecutive naturals, for example, 260920 + ... + 260977.

It is an arithmetic number, because the mean of its divisors is an integer number (3914235).

Almost surely, 2^15135013 is an apocalyptic number.

It is an amenable number.

15135013 is a deficient number, since it is larger than the sum of its proper divisors (521927).

15135013 is an equidigital number, since it uses as much as digits as its factorization.

15135013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521926.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 15135013 is about 3890.3744035761. The cubic root of 15135013 is about 247.3589333181.

Adding to 15135013 its reverse (31053151), we get a palindrome (46188164).

The spelling of 15135013 in words is "fifteen million, one hundred thirty-five thousand, thirteen".