12715020 has 36 divisors (see below), whose sum is σ = 38569440. Its totient is φ = 3390624.

The previous prime is 12714983. The next prime is 12715037. The reversal of 12715020 is 2051721.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 12714984 and 12715002.

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, 35140 + ... + 35499.

Almost surely, 2^12715020 is an apocalyptic number.

12715020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12715020 is an abundant number, since it is smaller than the sum of its proper divisors (25854420).

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

12715020 is a wasteful number, since it uses less digits than its factorization.

12715020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70654 (or 70649 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 12715020 is about 3565.8126703460. The cubic root of 12715020 is about 233.4025962180.

Adding to 12715020 its reverse (2051721), we get a palindrome (14766741).

The spelling of 12715020 in words is "twelve million, seven hundred fifteen thousand, twenty".