137623009 has 8 divisors (see below), whose sum is σ = 142776000. Its totient is φ = 132497232.

The previous prime is 137623001. The next prime is 137623021. The reversal of 137623009 is 900326731.

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

It is a cyclic number.

It is not a de Polignac number, because 137623009 - 2³ = 137623001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137623001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3802 + ... + 17020.

It is an arithmetic number, because the mean of its divisors is an integer number (17847000).

Almost surely, 2^137623009 is an apocalyptic number.

It is an amenable number.

137623009 is a deficient number, since it is larger than the sum of its proper divisors (5152991).

137623009 is a wasteful number, since it uses less digits than its factorization.

137623009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13607.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 137623009 is about 11731.2833483809. The cubic root of 137623009 is about 516.2939266951.

The spelling of 137623009 in words is "one hundred thirty-seven million, six hundred twenty-three thousand, nine".