134391858 has 16 divisors (see below), whose sum is σ = 278052480. Its totient is φ = 43252496.

The previous prime is 134391841. The next prime is 134391937. The reversal of 134391858 is 858193431.

It is a super-2 number, since 2×134391858² = 36122342993384328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386010 + ... + 386357.

It is an arithmetic number, because the mean of its divisors is an integer number (17378280).

Almost surely, 2^134391858 is an apocalyptic number.

134391858 is an abundant number, since it is smaller than the sum of its proper divisors (143660622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134391858 is a wasteful number, since it uses less digits than its factorization.

134391858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772401.

The product of its digits is 103680, while the sum is 42.

The square root of 134391858 is about 11592.7502345216. The cubic root of 134391858 is about 512.2213220604.

The spelling of 134391858 in words is "one hundred thirty-four million, three hundred ninety-one thousand, eight hundred fifty-eight".