139059407 has 2 divisors, whose sum is σ = 139059408. Its totient is φ = 139059406.

The previous prime is 139059383. The next prime is 139059419. The reversal of 139059407 is 704950931.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139059407 - 2¹² = 139055311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139059457) 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 as a sum of consecutive naturals, namely, 69529703 + 69529704.

It is an arithmetic number, because the mean of its divisors is an integer number (69529704).

Almost surely, 2^139059407 is an apocalyptic number.

139059407 is a deficient number, since it is larger than the sum of its proper divisors (1).

139059407 is an equidigital number, since it uses as much as digits as its factorization.

139059407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 139059407 is about 11792.3452714038. The cubic root of 139059407 is about 518.0839334185.

The spelling of 139059407 in words is "one hundred thirty-nine million, fifty-nine thousand, four hundred seven".