136169244 has 18 divisors (see below), whose sum is σ = 344205680. Its totient is φ = 45389736.

The previous prime is 136169203. The next prime is 136169249. The reversal of 136169244 is 442961631.

136169244 is a `hidden beast` number, since 13 + 616 + 9 + 24 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3782479 = 136169244 / (1 + 3 + 6 + 1 + 6 + 9 + 2 + 4 + 4).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 136169199 and 136169208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136169249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1891204 + ... + 1891275.

Almost surely, 2^136169244 is an apocalyptic number.

It is an amenable number.

136169244 is an abundant number, since it is smaller than the sum of its proper divisors (208036436).

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

136169244 is a wasteful number, since it uses less digits than its factorization.

136169244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3782489 (or 3782484 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 136169244 is about 11669.1578102278. The cubic root of 136169244 is about 514.4695502837.

The spelling of 136169244 in words is "one hundred thirty-six million, one hundred sixty-nine thousand, two hundred forty-four".