1376572109 has 8 divisors (see below), whose sum is σ = 1514127360. Its totient is φ = 1251427980.

The previous prime is 1376572079. The next prime is 1376572117. The reversal of 1376572109 is 9012756731.

It is not a de Polignac number, because 1376572109 - 2⁸ = 1376571853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1376572159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515789 + ... + 518450.

It is an arithmetic number, because the mean of its divisors is an integer number (189265920).

Almost surely, 2^1376572109 is an apocalyptic number.

It is an amenable number.

1376572109 is a deficient number, since it is larger than the sum of its proper divisors (137555251).

1376572109 is an equidigital number, since it uses as much as digits as its factorization.

1376572109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034272 (or 1034250 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 1376572109 is about 37102.1846930878. The cubic root of 1376572109 is about 1112.4136825509.

The spelling of 1376572109 in words is "one billion, three hundred seventy-six million, five hundred seventy-two thousand, one hundred nine".