134581657 has 4 divisors (see below), whose sum is σ = 153807616. Its totient is φ = 115355700.

The previous prime is 134581651. The next prime is 134581669. The reversal of 134581657 is 756185431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 134581657 - 2¹⁵ = 134548889 is a prime.

It is a super-2 number, since 2×134581657² = 36224444801731298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134581651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9612969 + ... + 9612982.

It is an arithmetic number, because the mean of its divisors is an integer number (38451904).

Almost surely, 2^134581657 is an apocalyptic number.

It is an amenable number.

134581657 is a deficient number, since it is larger than the sum of its proper divisors (19225959).

134581657 is an equidigital number, since it uses as much as digits as its factorization.

134581657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19225958.

The product of its digits is 100800, while the sum is 40.

The square root of 134581657 is about 11600.9334538217. The cubic root of 134581657 is about 512.4623420278.

The spelling of 134581657 in words is "one hundred thirty-four million, five hundred eighty-one thousand, six hundred fifty-seven".