136873530 has 64 divisors (see below), whose sum is σ = 384220800. Its totient is φ = 34577280.

The previous prime is 136873523. The next prime is 136873531. The reversal of 136873530 is 35378631.

It is not an unprimeable number, because it can be changed into a prime (136873531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8211 + ... + 18470.

It is an arithmetic number, because the mean of its divisors is an integer number (6003450).

Almost surely, 2^136873530 is an apocalyptic number.

136873530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136873530 is an abundant number, since it is smaller than the sum of its proper divisors (247347270).

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

136873530 is a wasteful number, since it uses less digits than its factorization.

136873530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26716 (or 26710 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 136873530 is about 11699.2961326740. The cubic root of 136873530 is about 515.3549945049.

The spelling of 136873530 in words is "one hundred thirty-six million, eight hundred seventy-three thousand, five hundred thirty".