12500720 has 20 divisors (see below), whose sum is σ = 29064360. Its totient is φ = 5000256.

The previous prime is 12500693. The next prime is 12500749. The reversal of 12500720 is 2700521.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78050 + ... + 78209.

It is an arithmetic number, because the mean of its divisors is an integer number (1453218).

Almost surely, 2^12500720 is an apocalyptic number.

12500720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12500720 is an abundant number, since it is smaller than the sum of its proper divisors (16563640).

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

12500720 is a wasteful number, since it uses less digits than its factorization.

12500720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156272 (or 156266 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 12500720 is about 3535.6357278430. The cubic root of 12500720 is about 232.0838975204.

It can be divided in two parts, 12500 and 720, that multiplied together give a square (9000000 = 3000²).

The spelling of 12500720 in words is "twelve million, five hundred thousand, seven hundred twenty".