136221402 has 16 divisors (see below), whose sum is σ = 273451392. Its totient is φ = 45239040.

The previous prime is 136221401. The next prime is 136221403. The reversal of 136221402 is 204122631.

136221402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (136221401) and next prime (136221403).

It is not an unprimeable number, because it can be changed into a prime (136221401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40263 + ... + 43514.

It is an arithmetic number, because the mean of its divisors is an integer number (17090712).

Almost surely, 2^136221402 is an apocalyptic number.

136221402 is an abundant number, since it is smaller than the sum of its proper divisors (137229990).

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

136221402 is a wasteful number, since it uses less digits than its factorization.

136221402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84053.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 136221402 is about 11671.3924619130. The cubic root of 136221402 is about 514.5352290342.

The spelling of 136221402 in words is "one hundred thirty-six million, two hundred twenty-one thousand, four hundred two".