134395657 has 8 divisors (see below), whose sum is σ = 151669440. Its totient is φ = 117964560.

The previous prime is 134395649. The next prime is 134395661. The reversal of 134395657 is 756593431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 134395657 - 2³ = 134395649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134395057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210333 + ... + 210970.

It is an arithmetic number, because the mean of its divisors is an integer number (18958680).

Almost surely, 2^134395657 is an apocalyptic number.

It is an amenable number.

134395657 is a deficient number, since it is larger than the sum of its proper divisors (17273783).

134395657 is a wasteful number, since it uses less digits than its factorization.

134395657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421343.

The product of its digits is 340200, while the sum is 43.

The square root of 134395657 is about 11592.9140857681. The cubic root of 134395657 is about 512.2261485196.

The spelling of 134395657 in words is "one hundred thirty-four million, three hundred ninety-five thousand, six hundred fifty-seven".