136072242 has 12 divisors (see below), whose sum is σ = 294823230. Its totient is φ = 45357408.

The previous prime is 136072241. The next prime is 136072249. The reversal of 136072242 is 242270631.

136072242 is a `hidden beast` number, since 13 + 607 + 2 + 2 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 133610481 + 2461761 = 11559^2 + 1569^2 .

It is not an unprimeable number, because it can be changed into a prime (136072241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3779767 + ... + 3779802.

Almost surely, 2^136072242 is an apocalyptic number.

136072242 is an abundant number, since it is smaller than the sum of its proper divisors (158750988).

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

136072242 is a wasteful number, since it uses less digits than its factorization.

136072242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7559577 (or 7559574 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 136072242 is about 11665.0007286755. Note that the first 3 decimals coincide. The cubic root of 136072242 is about 514.3473581532.

The spelling of 136072242 in words is "one hundred thirty-six million, seventy-two thousand, two hundred forty-two".