137323636 has 12 divisors (see below), whose sum is σ = 244851012. Its totient is φ = 67366208.

The previous prime is 137323633. The next prime is 137323643. The reversal of 137323636 is 636323731.

It can be written as a sum of positive squares in 2 ways, for example, as 114704100 + 22619536 = 10710^2 + 4756^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137323633) 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 3 ways as a sum of consecutive naturals, for example, 323665 + ... + 324088.

It is an arithmetic number, because the mean of its divisors is an integer number (20404251).

Almost surely, 2^137323636 is an apocalyptic number.

It is an amenable number.

137323636 is a deficient number, since it is larger than the sum of its proper divisors (107527376).

137323636 is a wasteful number, since it uses less digits than its factorization.

137323636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647810 (or 647808 counting only the distinct ones).

The product of its digits is 40824, while the sum is 34.

The square root of 137323636 is about 11718.5168003464. The cubic root of 137323636 is about 515.9192880989.

The spelling of 137323636 in words is "one hundred thirty-seven million, three hundred twenty-three thousand, six hundred thirty-six".