1387154164 has 36 divisors (see below), whose sum is σ = 2673872964. Its totient is φ = 629200000.

The previous prime is 1387154149. The next prime is 1387154177. The reversal of 1387154164 is 4614517831.

It can be written as a sum of positive squares in 2 ways, for example, as 982822500 + 404331664 = 31350^2 + 20108^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 249414 + ... + 254914.

It is an arithmetic number, because the mean of its divisors is an integer number (74274249).

Almost surely, 2^1387154164 is an apocalyptic number.

It is an amenable number.

1387154164 is a deficient number, since it is larger than the sum of its proper divisors (1286718800).

1387154164 is a wasteful number, since it uses less digits than its factorization.

1387154164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6048 (or 6035 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 1387154164 is about 37244.5185765637. The cubic root of 1387154164 is about 1115.2568771435.

It can be divided in two parts, 1387 and 154164, that added together give a palindrome (155551).

The spelling of 1387154164 in words is "one billion, three hundred eighty-seven million, one hundred fifty-four thousand, one hundred sixty-four".