134720628 has 24 divisors (see below), whose sum is σ = 359255232. Its totient is φ = 38491584.

The previous prime is 134720623. The next prime is 134720639. The reversal of 134720628 is 826027431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134720623) 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, 801825 + ... + 801992.

It is an arithmetic number, because the mean of its divisors is an integer number (14968968).

Almost surely, 2^134720628 is an apocalyptic number.

It is an amenable number.

134720628 is an abundant number, since it is smaller than the sum of its proper divisors (224534604).

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

134720628 is a wasteful number, since it uses less digits than its factorization.

134720628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603831 (or 1603829 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 134720628 is about 11606.9215556925. The cubic root of 134720628 is about 512.6386734001.

The spelling of 134720628 in words is "one hundred thirty-four million, seven hundred twenty thousand, six hundred twenty-eight".