139130423 has 2 divisors, whose sum is σ = 139130424. Its totient is φ = 139130422.

The previous prime is 139130401. The next prime is 139130461. The reversal of 139130423 is 324031931.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139130423 - 2⁶ = 139130359 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 139130392 and 139130401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139130723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69565211 + 69565212.

It is an arithmetic number, because the mean of its divisors is an integer number (69565212).

Almost surely, 2^139130423 is an apocalyptic number.

139130423 is a deficient number, since it is larger than the sum of its proper divisors (1).

139130423 is an equidigital number, since it uses as much as digits as its factorization.

139130423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 139130423 is about 11795.3559929321. The cubic root of 139130423 is about 518.1721115290.

The spelling of 139130423 in words is "one hundred thirty-nine million, one hundred thirty thousand, four hundred twenty-three".