15012120 has 32 divisors (see below), whose sum is σ = 45036720. Its totient is φ = 4003200.

The previous prime is 15012113. The next prime is 15012143. The reversal of 15012120 is 2121051.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 15012096 and 15012105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62431 + ... + 62670.

Almost surely, 2^15012120 is an apocalyptic number.

15012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15012120 is an abundant number, since it is smaller than the sum of its proper divisors (30024600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15012120 is a wasteful number, since it uses less digits than its factorization.

15012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125115 (or 125111 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 15012120 is about 3874.5477155405. The cubic root of 15012120 is about 246.6876128629.

Adding to 15012120 its reverse (2121051), we get a palindrome (17133171).

The spelling of 15012120 in words is "fifteen million, twelve thousand, one hundred twenty".