1387625075 has 12 divisors (see below), whose sum is σ = 1795466928. Its totient is φ = 1061834400.

The previous prime is 1387625059. The next prime is 1387625101. The reversal of 1387625075 is 5705267831.

It is a happy number.

It is not a de Polignac number, because 1387625075 - 2⁴ = 1387625059 is a prime.

It is a Duffinian 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, 1206056 + ... + 1207205.

It is an arithmetic number, because the mean of its divisors is an integer number (149622244).

Almost surely, 2^1387625075 is an apocalyptic number.

1387625075 is a deficient number, since it is larger than the sum of its proper divisors (407841853).

1387625075 is a wasteful number, since it uses less digits than its factorization.

1387625075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413294 (or 2413289 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 44.

The square root of 1387625075 is about 37250.8399234165. The cubic root of 1387625075 is about 1115.3830653078.

The spelling of 1387625075 in words is "one billion, three hundred eighty-seven million, six hundred twenty-five thousand, seventy-five".