1372975128 has 96 divisors (see below), whose sum is σ = 4303603200. Its totient is φ = 387301824.

The previous prime is 1372975103. The next prime is 1372975171. The reversal of 1372975128 is 8215792731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22575 + ... + 57057.

It is an arithmetic number, because the mean of its divisors is an integer number (44829200).

Almost surely, 2^1372975128 is an apocalyptic number.

1372975128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1372975128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2151801600).

1372975128 is an abundant number, since it is smaller than the sum of its proper divisors (2930628072).

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

1372975128 is a wasteful number, since it uses less digits than its factorization.

1372975128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34581 (or 34574 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 1372975128 is about 37053.6790076235. The cubic root of 1372975128 is about 1111.4439256019.

The spelling of 1372975128 in words is "one billion, three hundred seventy-two million, nine hundred seventy-five thousand, one hundred twenty-eight".