136864752 has 160 divisors (see below), whose sum is σ = 396165120. Its totient is φ = 40538880.

The previous prime is 136864751. The next prime is 136864817. The reversal of 136864752 is 257468631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136864751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1328733 + ... + 1328835.

It is an arithmetic number, because the mean of its divisors is an integer number (2476032).

Almost surely, 2^136864752 is an apocalyptic number.

136864752 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 136864752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198082560).

136864752 is an abundant number, since it is smaller than the sum of its proper divisors (259300368).

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

136864752 is a wasteful number, since it uses less digits than its factorization.

136864752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 205 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 136864752 is about 11698.9209758849. The cubic root of 136864752 is about 515.3439773202.

The spelling of 136864752 in words is "one hundred thirty-six million, eight hundred sixty-four thousand, seven hundred fifty-two".