136217412 has 36 divisors (see below), whose sum is σ = 344782620. Its totient is φ = 45345792.

The previous prime is 136217407. The next prime is 136217429. The reversal of 136217412 is 214712631.

136217412 is a `hidden beast` number, since 1 + 36 + 217 + 412 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7485696 + 128731716 = 2736^2 + 11346^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31408 + ... + 35480.

It is an arithmetic number, because the mean of its divisors is an integer number (9577295).

Almost surely, 2^136217412 is an apocalyptic number.

136217412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

136217412 is an abundant number, since it is smaller than the sum of its proper divisors (208565208).

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

136217412 is a wasteful number, since it uses less digits than its factorization.

136217412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5012 (or 5007 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 136217412 is about 11671.2215298999. The cubic root of 136217412 is about 514.5302053116.

The spelling of 136217412 in words is "one hundred thirty-six million, two hundred seventeen thousand, four hundred twelve".