139423199 has 2 divisors, whose sum is σ = 139423200. Its totient is φ = 139423198.

The previous prime is 139423187. The next prime is 139423201. The reversal of 139423199 is 991324931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139423199 - 2⁴ = 139423183 is a prime.

Together with 139423201, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139423139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69711599 + 69711600.

It is an arithmetic number, because the mean of its divisors is an integer number (69711600).

Almost surely, 2^139423199 is an apocalyptic number.

139423199 is a deficient number, since it is larger than the sum of its proper divisors (1).

139423199 is an equidigital number, since it uses as much as digits as its factorization.

139423199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 41.

The square root of 139423199 is about 11807.7601178208. The cubic root of 139423199 is about 518.5353248469.

The spelling of 139423199 in words is "one hundred thirty-nine million, four hundred twenty-three thousand, one hundred ninety-nine".