1387134875 has 32 divisors (see below), whose sum is σ = 2018889600. Its totient is φ = 951148800.

The previous prime is 1387134871. The next prime is 1387134901. The reversal of 1387134875 is 5784317831.

It is not a de Polignac number, because 1387134875 - 2² = 1387134871 is a prime.

It is a super-2 number, since 2×1387134875² = 3848286322882531250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1387134871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26699 + ... + 59051.

It is an arithmetic number, because the mean of its divisors is an integer number (63090300).

Almost surely, 2^1387134875 is an apocalyptic number.

1387134875 is a deficient number, since it is larger than the sum of its proper divisors (631754725).

1387134875 is an frugal number, since it uses more digits than its factorization.

1387134875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32389 (or 32365 counting only the distinct ones).

The product of its digits is 564480, while the sum is 47.

The square root of 1387134875 is about 37244.2596248066. The cubic root of 1387134875 is about 1115.2517077374.

The spelling of 1387134875 in words is "one billion, three hundred eighty-seven million, one hundred thirty-four thousand, eight hundred seventy-five".