15112420 has 36 divisors (see below), whose sum is σ = 32466420. Its totient is φ = 5908864.

The previous prime is 15112417. The next prime is 15112441. The reversal of 15112420 is 2421151.

15112420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 166464 + 14945956 = 408^2 + 3866^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15112394 and 15112403.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56046 + ... + 56314.

It is an arithmetic number, because the mean of its divisors is an integer number (901845).

Almost surely, 2^15112420 is an apocalyptic number.

15112420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15112420 is an abundant number, since it is smaller than the sum of its proper divisors (17354000).

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

15112420 is a wasteful number, since it uses less digits than its factorization.

15112420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 15112420 is about 3887.4696140292. The cubic root of 15112420 is about 247.2357891997.

Adding to 15112420 its reverse (2421151), we get a palindrome (17533571).

The spelling of 15112420 in words is "fifteen million, one hundred twelve thousand, four hundred twenty".