136732464 has 120 divisors (see below), whose sum is σ = 428914512. Its totient is φ = 40296960.

The previous prime is 136732433. The next prime is 136732469. The reversal of 136732464 is 464237631.

It is a happy number.

It is a super-2 number, since 2×136732464² = 37391533423022592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (136732469) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57442 + ... + 59774.

Almost surely, 2^136732464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136732464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214457256).

136732464 is an abundant number, since it is smaller than the sum of its proper divisors (292182048).

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

136732464 is a wasteful number, since it uses less digits than its factorization.

136732464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2395 (or 2386 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 136732464 is about 11693.2657542707. The cubic root of 136732464 is about 515.1778868317.

The spelling of 136732464 in words is "one hundred thirty-six million, seven hundred thirty-two thousand, four hundred sixty-four".