137295666 has 12 divisors (see below), whose sum is σ = 297473982. Its totient is φ = 45765216.

The previous prime is 137295661. The next prime is 137295667. The reversal of 137295666 is 666592731.

It can be written as a sum of positive squares in only one way, i.e., 80730225 + 56565441 = 8985^2 + 7521^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (137295661) 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, 3813751 + ... + 3813786.

Almost surely, 2^137295666 is an apocalyptic number.

137295666 is an abundant number, since it is smaller than the sum of its proper divisors (160178316).

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

137295666 is a wasteful number, since it uses less digits than its factorization.

137295666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7627545 (or 7627542 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 137295666 is about 11717.3233291567. The cubic root of 137295666 is about 515.8842583383.

The spelling of 137295666 in words is "one hundred thirty-seven million, two hundred ninety-five thousand, six hundred sixty-six".