1387160957 has 12 divisors (see below), whose sum is σ = 1716657120. Its totient is φ = 1097533008.

The previous prime is 1387160941. The next prime is 1387160959. The reversal of 1387160957 is 7590617831.

It is not a de Polignac number, because 1387160957 - 2⁴ = 1387160941 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387160959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 585107 + ... + 587472.

It is an arithmetic number, because the mean of its divisors is an integer number (143054760).

Almost surely, 2^1387160957 is an apocalyptic number.

It is an amenable number.

1387160957 is a deficient number, since it is larger than the sum of its proper divisors (329496163).

1387160957 is a wasteful number, since it uses less digits than its factorization.

1387160957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172612 (or 1172599 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 47.

The square root of 1387160957 is about 37244.6097710796. The cubic root of 1387160957 is about 1115.2586976400.

The spelling of 1387160957 in words is "one billion, three hundred eighty-seven million, one hundred sixty thousand, nine hundred fifty-seven".