137244609 has 12 divisors (see below), whose sum is σ = 201201936. Its totient is φ = 90130392.

The previous prime is 137244577. The next prime is 137244629. The reversal of 137244609 is 906442731.

137244609 is a `hidden beast` number, since 1 + 3 + 7 + 2 + 44 + 609 = 666.

It is not a de Polignac number, because 137244609 - 2⁵ = 137244577 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (137244629) 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 11 ways as a sum of consecutive naturals, for example, 113199 + ... + 114404.

It is an arithmetic number, because the mean of its divisors is an integer number (16766828).

Almost surely, 2^137244609 is an apocalyptic number.

It is an amenable number.

137244609 is a deficient number, since it is larger than the sum of its proper divisors (63957327).

137244609 is a wasteful number, since it uses less digits than its factorization.

137244609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227676 (or 227673 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 137244609 is about 11715.1444293274. The cubic root of 137244609 is about 515.8203020386.

The spelling of 137244609 in words is "one hundred thirty-seven million, two hundred forty-four thousand, six hundred nine".