139130123 has 8 divisors (see below), whose sum is σ = 154044480. Its totient is φ = 124593480.

The previous prime is 139130099. The next prime is 139130137. The reversal of 139130123 is 321031931.

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

It is not a de Polignac number, because 139130123 - 2⁸ = 139129867 is a prime.

It is a super-2 number, since 2×139130123² = 38714382251990258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139130183) 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, 93653 + ... + 95126.

It is an arithmetic number, because the mean of its divisors is an integer number (19255560).

Almost surely, 2^139130123 is an apocalyptic number.

139130123 is a deficient number, since it is larger than the sum of its proper divisors (14914357).

139130123 is a wasteful number, since it uses less digits than its factorization.

139130123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188857.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 139130123 is about 11795.3432760560. The cubic root of 139130123 is about 518.1717390925.

The spelling of 139130123 in words is "one hundred thirty-nine million, one hundred thirty thousand, one hundred twenty-three".