137672506 has 16 divisors (see below), whose sum is σ = 212103360. Its totient is φ = 66980320.

The previous prime is 137672501. The next prime is 137672527. The reversal of 137672506 is 605276731.

137672506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (137672501) 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, 32355 + ... + 36361.

It is an arithmetic number, because the mean of its divisors is an integer number (13256460).

Almost surely, 2^137672506 is an apocalyptic number.

137672506 is a deficient number, since it is larger than the sum of its proper divisors (74430854).

137672506 is a wasteful number, since it uses less digits than its factorization.

137672506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4469.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 137672506 is about 11733.3927744706. The cubic root of 137672506 is about 516.3558154195.

The spelling of 137672506 in words is "one hundred thirty-seven million, six hundred seventy-two thousand, five hundred six".