136281628 has 24 divisors (see below), whose sum is σ = 273549024. Its totient is φ = 58195200.

The previous prime is 136281599. The next prime is 136281631. The reversal of 136281628 is 826182631.

It is a happy number.

It is a congruent number.

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, 793 + ... + 16528.

It is an arithmetic number, because the mean of its divisors is an integer number (11397876).

Almost surely, 2^136281628 is an apocalyptic number.

It is an amenable number.

136281628 is an abundant number, since it is smaller than the sum of its proper divisors (137267396).

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

136281628 is a wasteful number, since it uses less digits than its factorization.

136281628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17613 (or 17611 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 136281628 is about 11673.9722459838. The cubic root of 136281628 is about 514.6110463740.

The spelling of 136281628 in words is "one hundred thirty-six million, two hundred eighty-one thousand, six hundred twenty-eight".