136984520 has 16 divisors (see below), whose sum is σ = 308215260. Its totient is φ = 54793792.

The previous prime is 136984517. The next prime is 136984537. The reversal of 136984520 is 25489631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 136282276 + 702244 = 11674^2 + 838^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1712267 + ... + 1712346.

Almost surely, 2^136984520 is an apocalyptic number.

136984520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136984520 is an abundant number, since it is smaller than the sum of its proper divisors (171230740).

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

136984520 is a wasteful number, since it uses less digits than its factorization.

136984520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3424624 (or 3424620 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 136984520 is about 11704.0386192117. The cubic root of 136984520 is about 515.4942563888.

The spelling of 136984520 in words is "one hundred thirty-six million, nine hundred eighty-four thousand, five hundred twenty".