137125579 has 4 divisors (see below), whose sum is σ = 138483360. Its totient is φ = 135767800.

The previous prime is 137125577. The next prime is 137125631. The reversal of 137125579 is 975521731.

137125579 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 137125579 - 2¹ = 137125577 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137125577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678739 + ... + 678940.

It is an arithmetic number, because the mean of its divisors is an integer number (34620840).

Almost surely, 2^137125579 is an apocalyptic number.

137125579 is a deficient number, since it is larger than the sum of its proper divisors (1357781).

137125579 is a wasteful number, since it uses less digits than its factorization.

137125579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357780.

The product of its digits is 66150, while the sum is 40.

The square root of 137125579 is about 11710.0631509826. The cubic root of 137125579 is about 515.6711380765.

It can be divided in two parts, 13712 and 5579, that added together give a palindrome (19291).

The spelling of 137125579 in words is "one hundred thirty-seven million, one hundred twenty-five thousand, five hundred seventy-nine".