134521644 has 24 divisors (see below), whose sum is σ = 314577648. Its totient is φ = 44741440.

The previous prime is 134521643. The next prime is 134521649. The reversal of 134521644 is 446125431.

It is not an unprimeable number, because it can be changed into a prime (134521643) 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, 6627 + ... + 17690.

It is an arithmetic number, because the mean of its divisors is an integer number (13107402).

Almost surely, 2^134521644 is an apocalyptic number.

It is an amenable number.

134521644 is an abundant number, since it is smaller than the sum of its proper divisors (180056004).

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

134521644 is a wasteful number, since it uses less digits than its factorization.

134521644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24785 (or 24783 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 134521644 is about 11598.3466063056. The cubic root of 134521644 is about 512.3861578590.

The spelling of 134521644 in words is "one hundred thirty-four million, five hundred twenty-one thousand, six hundred forty-four".