1375131992 has 32 divisors (see below), whose sum is σ = 2922855600. Its totient is φ = 601271424.

The previous prime is 1375131991. The next prime is 1375132019. The reversal of 1375131992 is 2991315731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375131991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345983 + ... + 349934.

Almost surely, 2^1375131992 is an apocalyptic number.

It is an amenable number.

1375131992 is an abundant number, since it is smaller than the sum of its proper divisors (1547723608).

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

1375131992 is a wasteful number, since it uses less digits than its factorization.

1375131992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695955 (or 695951 counting only the distinct ones).

The product of its digits is 51030, while the sum is 41.

The square root of 1375131992 is about 37082.7721725332. The cubic root of 1375131992 is about 1112.0256256710.

The spelling of 1375131992 in words is "one billion, three hundred seventy-five million, one hundred thirty-one thousand, nine hundred ninety-two".