136489824 has 36 divisors (see below), whose sum is σ = 388143756. Its totient is φ = 45496512.

The previous prime is 136489823. The next prime is 136489841. The reversal of 136489824 is 428984631.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 136489824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136489823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 236674 + ... + 237249.

It is an arithmetic number, because the mean of its divisors is an integer number (10781771).

Almost surely, 2^136489824 is an apocalyptic number.

It is an amenable number.

136489824 is an abundant number, since it is smaller than the sum of its proper divisors (251653932).

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

136489824 is a wasteful number, since it uses less digits than its factorization.

136489824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473939 (or 473928 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 136489824 is about 11682.8859448340. The cubic root of 136489824 is about 514.8729683229.

The spelling of 136489824 in words is "one hundred thirty-six million, four hundred eighty-nine thousand, eight hundred twenty-four".