134861257587 has 30 divisors (see below), whose sum is σ = 209820187428. Its totient is φ = 77045765832.

The previous prime is 134861257579. The next prime is 134861257637. The reversal of 134861257587 is 785752168431.

It is not a de Polignac number, because 134861257587 - 2³ = 134861257579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134861257577) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 31165218 + ... + 31169544.

Almost surely, 2^134861257587 is an apocalyptic number.

134861257587 is a deficient number, since it is larger than the sum of its proper divisors (74958929841).

134861257587 is an frugal number, since it uses more digits than its factorization.

134861257587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8685 (or 4337 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 57.

The spelling of 134861257587 in words is "one hundred thirty-four billion, eight hundred sixty-one million, two hundred fifty-seven thousand, five hundred eighty-seven".