135967857 has 16 divisors (see below), whose sum is σ = 193685760. Its totient is φ = 84590352.

The previous prime is 135967847. The next prime is 135967873. The reversal of 135967857 is 758769531.

It is not a de Polignac number, because 135967857 - 2⁷ = 135967729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135967807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13983 + ... + 21620.

It is an arithmetic number, because the mean of its divisors is an integer number (12105360).

Almost surely, 2^135967857 is an apocalyptic number.

It is an amenable number.

135967857 is a deficient number, since it is larger than the sum of its proper divisors (57717903).

135967857 is a wasteful number, since it uses less digits than its factorization.

135967857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35692.

The product of its digits is 1587600, while the sum is 51.

The square root of 135967857 is about 11660.5255884973. The cubic root of 135967857 is about 514.2158008688.

The spelling of 135967857 in words is "one hundred thirty-five million, nine hundred sixty-seven thousand, eight hundred fifty-seven".