15120313 has 8 divisors (see below), whose sum is σ = 16318400. Its totient is φ = 13927248.

The previous prime is 15120289. The next prime is 15120319. The reversal of 15120313 is 31302151.

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

It is a cyclic number.

It is not a de Polignac number, because 15120313 - 2¹³ = 15112121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15120319) 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, 7108 + ... + 8986.

It is an arithmetic number, because the mean of its divisors is an integer number (2039800).

Almost surely, 2^15120313 is an apocalyptic number.

15120313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

15120313 is a deficient number, since it is larger than the sum of its proper divisors (1198087).

15120313 is a wasteful number, since it uses less digits than its factorization.

15120313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2511.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 15120313 is about 3888.4846662935. The cubic root of 15120313 is about 247.2788242761.

Adding to 15120313 its reverse (31302151), we get a palindrome (46422464).

The spelling of 15120313 in words is "fifteen million, one hundred twenty thousand, three hundred thirteen".