13125312 has 42 divisors (see below), whose sum is σ = 37622988. Its totient is φ = 4374912.

The previous prime is 13125311. The next prime is 13125319. The reversal of 13125312 is 21352131.

13125312 is a `hidden beast` number, since 131 + 2 + 531 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (13125311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10818 + ... + 11969.

Almost surely, 2^13125312 is an apocalyptic number.

13125312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13125312 is an abundant number, since it is smaller than the sum of its proper divisors (24497676).

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

13125312 is a wasteful number, since it uses less digits than its factorization.

13125312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22805 (or 22792 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 13125312 is about 3622.8872463824. The cubic root of 13125312 is about 235.8865681064.

Adding to 13125312 its reverse (21352131), we get a palindrome (34477443).

The spelling of 13125312 in words is "thirteen million, one hundred twenty-five thousand, three hundred twelve".