139034899 has 2 divisors, whose sum is σ = 139034900. Its totient is φ = 139034898.

The previous prime is 139034897. The next prime is 139034923. The reversal of 139034899 is 998430931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139034899 - 2¹ = 139034897 is a prime.

Together with 139034897, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (139034897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69517449 + 69517450.

It is an arithmetic number, because the mean of its divisors is an integer number (69517450).

Almost surely, 2^139034899 is an apocalyptic number.

139034899 is a deficient number, since it is larger than the sum of its proper divisors (1).

139034899 is an equidigital number, since it uses as much as digits as its factorization.

139034899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 139034899 is about 11791.3060769365. The cubic root of 139034899 is about 518.0534957149.

The spelling of 139034899 in words is "one hundred thirty-nine million, thirty-four thousand, eight hundred ninety-nine".