1387117835 has 16 divisors (see below), whose sum is σ = 1679704320. Its totient is φ = 1099617120.

The previous prime is 1387117813. The next prime is 1387117867. The reversal of 1387117835 is 5387117831.

It is not a de Polignac number, because 1387117835 - 2²⁶ = 1320008971 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 436964 + ... + 440126.

It is an arithmetic number, because the mean of its divisors is an integer number (104981520).

Almost surely, 2^1387117835 is an apocalyptic number.

1387117835 is a deficient number, since it is larger than the sum of its proper divisors (292586485).

1387117835 is a wasteful number, since it uses less digits than its factorization.

1387117835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3938.

The product of its digits is 141120, while the sum is 44.

The square root of 1387117835 is about 37244.0308640190. The cubic root of 1387117835 is about 1115.2471410181.

The spelling of 1387117835 in words is "one billion, three hundred eighty-seven million, one hundred seventeen thousand, eight hundred thirty-five".