135634857 has 32 divisors (see below), whose sum is σ = 197885952. Its totient is φ = 82301184.

The previous prime is 135634853. The next prime is 135634861. The reversal of 135634857 is 758436531.

135634857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (135634853) and next prime (135634861).

It is not a de Polignac number, because 135634857 - 2² = 135634853 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135634853) 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, 278268 + ... + 278754.

It is an arithmetic number, because the mean of its divisors is an integer number (6183936).

Almost surely, 2^135634857 is an apocalyptic number.

135634857 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

135634857 is a deficient number, since it is larger than the sum of its proper divisors (62251095).

135634857 is a wasteful number, since it uses less digits than its factorization.

135634857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677.

The product of its digits is 302400, while the sum is 42.

The square root of 135634857 is about 11646.2378904091. The cubic root of 135634857 is about 513.7956676450.

The spelling of 135634857 in words is "one hundred thirty-five million, six hundred thirty-four thousand, eight hundred fifty-seven".