136540632 has 64 divisors (see below), whose sum is σ = 349545600. Its totient is φ = 44432640.

The previous prime is 136540603. The next prime is 136540633. The reversal of 136540632 is 236045631.

It is a self number, because there is not a number n which added to its sum of digits gives 136540632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136540633) 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, 298548 + ... + 299004.

It is an arithmetic number, because the mean of its divisors is an integer number (5461650).

Almost surely, 2^136540632 is an apocalyptic number.

136540632 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 136540632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174772800).

136540632 is an abundant number, since it is smaller than the sum of its proper divisors (213004968).

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

136540632 is a wasteful number, since it uses less digits than its factorization.

136540632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 136540632 is about 11685.0602052364. The cubic root of 136540632 is about 514.9368471277.

The spelling of 136540632 in words is "one hundred thirty-six million, five hundred forty thousand, six hundred thirty-two".