136489536 has 140 divisors (see below), whose sum is σ = 409930092. Its totient is φ = 44900352.

The previous prime is 136489501. The next prime is 136489537. The reversal of 136489536 is 635984631.

136489536 is a `hidden beast` number, since 1 + 36 + 4 + 89 + 536 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11943936 + 124545600 = 3456^2 + 11160^2 .

It is a junction number, because it is equal to n+sod(n) for n = 136489491 and 136489500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136489537) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 585676 + ... + 585908.

Almost surely, 2^136489536 is an apocalyptic number.

136489536 is a gapful number since it is divisible by the number (16) 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 136489536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204965046).

136489536 is an abundant number, since it is smaller than the sum of its proper divisors (273440556).

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

136489536 is a wasteful number, since it uses less digits than its factorization.

136489536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 351 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 136489536 is about 11682.8736191059. The cubic root of 136489536 is about 514.8726061872.

The spelling of 136489536 in words is "one hundred thirty-six million, four hundred eighty-nine thousand, five hundred thirty-six".