134237664 has 72 divisors (see below), whose sum is σ = 416451672. Its totient is φ = 40677120.

The previous prime is 134237659. The next prime is 134237671. The reversal of 134237664 is 466732431.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18019 + ... + 24354.

It is an arithmetic number, because the mean of its divisors is an integer number (5784051).

Almost surely, 2^134237664 is an apocalyptic number.

It is an amenable number.

134237664 is an abundant number, since it is smaller than the sum of its proper divisors (282214008).

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

134237664 is a wasteful number, since it uses less digits than its factorization.

134237664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42400 (or 42389 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 134237664 is about 11586.0978763344. The cubic root of 134237664 is about 512.0253486799.

The spelling of 134237664 in words is "one hundred thirty-four million, two hundred thirty-seven thousand, six hundred sixty-four".