136261244 has 48 divisors (see below), whose sum is σ = 283207680. Its totient is φ = 56134080.

The previous prime is 136261243. The next prime is 136261247. The reversal of 136261244 is 442162631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136261241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154934 + ... + 155810.

It is an arithmetic number, because the mean of its divisors is an integer number (5900160).

Almost surely, 2^136261244 is an apocalyptic number.

136261244 is a gapful number since it is divisible by the number (14) 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 136261244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141603840).

136261244 is an abundant number, since it is smaller than the sum of its proper divisors (146946436).

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

136261244 is a wasteful number, since it uses less digits than its factorization.

136261244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098 (or 1096 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 136261244 is about 11673.0991600346. The cubic root of 136261244 is about 514.5853878541.

The spelling of 136261244 in words is "one hundred thirty-six million, two hundred sixty-one thousand, two hundred forty-four".