139080269 has 2 divisors, whose sum is σ = 139080270. Its totient is φ = 139080268.

The previous prime is 139080233. The next prime is 139080289. The reversal of 139080269 is 962080931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128550244 + 10530025 = 11338^2 + 3245^2 .

It is a cyclic number.

It is not a de Polignac number, because 139080269 - 2²⁰ = 138031693 is a prime.

It is a super-2 number, since 2×139080269² = 38686642450224722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139080289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69540134 + 69540135.

It is an arithmetic number, because the mean of its divisors is an integer number (69540135).

Almost surely, 2^139080269 is an apocalyptic number.

It is an amenable number.

139080269 is a deficient number, since it is larger than the sum of its proper divisors (1).

139080269 is an equidigital number, since it uses as much as digits as its factorization.

139080269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 139080269 is about 11793.2297950985. The cubic root of 139080269 is about 518.1098401558.

The spelling of 139080269 in words is "one hundred thirty-nine million, eighty thousand, two hundred sixty-nine".