15122013 has 8 divisors (see below), whose sum is σ = 20543328. Its totient is φ = 9891024.

The previous prime is 15121991. The next prime is 15122033. The reversal of 15122013 is 31022151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15122013 - 2¹² = 15117917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15121983 and 15122001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15122033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47395 + ... + 47712.

It is an arithmetic number, because the mean of its divisors is an integer number (2567916).

Almost surely, 2^15122013 is an apocalyptic number.

It is an amenable number.

15122013 is a deficient number, since it is larger than the sum of its proper divisors (5421315).

15122013 is an equidigital number, since it uses as much as digits as its factorization.

15122013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95163.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 15122013 is about 3888.7032542996. The cubic root of 15122013 is about 247.2880912414.

Adding to 15122013 its reverse (31022151), we get a palindrome (46144164).

The spelling of 15122013 in words is "fifteen million, one hundred twenty-two thousand, thirteen".