137008997 has 8 divisors (see below), whose sum is σ = 139324416. Its totient is φ = 134713152.

The previous prime is 137008987. The next prime is 137009009. The reversal of 137008997 is 799800731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137008997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137008957) 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 7 ways as a sum of consecutive naturals, for example, 9578 + ... + 19124.

It is an arithmetic number, because the mean of its divisors is an integer number (17415552).

Almost surely, 2^137008997 is an apocalyptic number.

It is an amenable number.

137008997 is a deficient number, since it is larger than the sum of its proper divisors (2315419).

137008997 is a wasteful number, since it uses less digits than its factorization.

137008997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9787.

The product of its (nonzero) digits is 95256, while the sum is 44.

The square root of 137008997 is about 11705.0842372022. The cubic root of 137008997 is about 515.5249581583.

The spelling of 137008997 in words is "one hundred thirty-seven million, eight thousand, nine hundred ninety-seven".