139359499 has 2 divisors, whose sum is σ = 139359500. Its totient is φ = 139359498.

The previous prime is 139359491. The next prime is 139359527. The reversal of 139359499 is 994953931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139359499 - 2³ = 139359491 is a prime.

It is not a weakly prime, because it can be changed into another prime (139359491) 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, 69679749 + 69679750.

It is an arithmetic number, because the mean of its divisors is an integer number (69679750).

Almost surely, 2^139359499 is an apocalyptic number.

139359499 is a deficient number, since it is larger than the sum of its proper divisors (1).

139359499 is an equidigital number, since it uses as much as digits as its factorization.

139359499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1180980, while the sum is 52.

The square root of 139359499 is about 11805.0624310081. The cubic root of 139359499 is about 518.4563429364.

The spelling of 139359499 in words is "one hundred thirty-nine million, three hundred fifty-nine thousand, four hundred ninety-nine".