15020113 has 4 divisors (see below), whose sum is σ = 15426100. Its totient is φ = 14614128.

The previous prime is 15020107. The next prime is 15020123. The reversal of 15020113 is 31102051.

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 12623809 + 2396304 = 3553^2 + 1548^2 .

It is a cyclic number.

It is not a de Polignac number, because 15020113 - 2⁹ = 15019601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15020093 and 15020102.

It is not an unprimeable number, because it can be changed into a prime (15020123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202938 + ... + 203011.

It is an arithmetic number, because the mean of its divisors is an integer number (3856525).

Almost surely, 2^15020113 is an apocalyptic number.

It is an amenable number.

15020113 is a deficient number, since it is larger than the sum of its proper divisors (405987).

15020113 is an equidigital number, since it uses as much as digits as its factorization.

15020113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405986.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 15020113 is about 3875.5790535093. The cubic root of 15020113 is about 246.7313869212.

Adding to 15020113 its reverse (31102051), we get a palindrome (46122164).

The spelling of 15020113 in words is "fifteen million, twenty thousand, one hundred thirteen".