136689532 has 48 divisors (see below), whose sum is σ = 279982080. Its totient is φ = 57182400.

The previous prime is 136689523. The next prime is 136689547. The reversal of 136689532 is 235986631.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326019 + ... + 326437.

It is an arithmetic number, because the mean of its divisors is an integer number (5832960).

Almost surely, 2^136689532 is an apocalyptic number.

It is an amenable number.

136689532 is an abundant number, since it is smaller than the sum of its proper divisors (143292548).

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

136689532 is a wasteful number, since it uses less digits than its factorization.

136689532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682 (or 680 counting only the distinct ones).

The product of its digits is 233280, while the sum is 43.

The square root of 136689532 is about 11691.4298526741. The cubic root of 136689532 is about 515.1239617392.

The spelling of 136689532 in words is "one hundred thirty-six million, six hundred eighty-nine thousand, five hundred thirty-two".