1372135980 has 48 divisors (see below), whose sum is σ = 3848624640. Its totient is φ = 365270208.

The previous prime is 1372135969. The next prime is 1372135987. The reversal of 1372135980 is 895312731.

It is a super-2 number, since 2×1372135980² = 3765514295221120800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1372135987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15741 + ... + 54699.

It is an arithmetic number, because the mean of its divisors is an integer number (80179680).

Almost surely, 2^1372135980 is an apocalyptic number.

1372135980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1372135980 is an abundant number, since it is smaller than the sum of its proper divisors (2476488660).

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

1372135980 is a wasteful number, since it uses less digits than its factorization.

1372135980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39558 (or 39556 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 1372135980 is about 37042.3538668913. The cubic root of 1372135980 is about 1111.2174451642.

The spelling of 1372135980 in words is "one billion, three hundred seventy-two million, one hundred thirty-five thousand, nine hundred eighty".