136021632 has 64 divisors (see below), whose sum is σ = 377040960. Its totient is φ = 43366400.

The previous prime is 136021631. The next prime is 136021651. The reversal of 136021632 is 236120631.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (136021631) 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, 1132 + ... + 16532.

It is an arithmetic number, because the mean of its divisors is an integer number (5891265).

Almost surely, 2^136021632 is an apocalyptic number.

136021632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136021632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188520480).

136021632 is an abundant number, since it is smaller than the sum of its proper divisors (241019328).

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

136021632 is a wasteful number, since it uses less digits than its factorization.

136021632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15441 (or 15429 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 136021632 is about 11662.8312171616. The cubic root of 136021632 is about 514.2835823545.

The spelling of 136021632 in words is "one hundred thirty-six million, twenty-one thousand, six hundred thirty-two".