136247172 has 48 divisors (see below), whose sum is σ = 333500160. Its totient is φ = 43241472.

The previous prime is 136247161. The next prime is 136247179. The reversal of 136247172 is 271742631.

136247172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (136247179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17604 + ... + 24132.

It is an arithmetic number, because the mean of its divisors is an integer number (6947920).

Almost surely, 2^136247172 is an apocalyptic number.

136247172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

136247172 is an abundant number, since it is smaller than the sum of its proper divisors (197252988).

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

136247172 is a wasteful number, since it uses less digits than its factorization.

136247172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6620 (or 6618 counting only the distinct ones).

The product of its digits is 14112, while the sum is 33.

The square root of 136247172 is about 11672.4963910896. The cubic root of 136247172 is about 514.5676731206.

The spelling of 136247172 in words is "one hundred thirty-six million, two hundred forty-seven thousand, one hundred seventy-two".