137438269 has 2 divisors, whose sum is σ = 137438270. Its totient is φ = 137438268.

The previous prime is 137438207. The next prime is 137438291. The reversal of 137438269 is 962834731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134676025 + 2762244 = 11605^2 + 1662^2 .

It is a cyclic number.

It is not a de Polignac number, because 137438269 - 2⁷ = 137438141 is a prime.

It is a super-2 number, since 2×137438269² = 37778555571432722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137438069) 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, 68719134 + 68719135.

It is an arithmetic number, because the mean of its divisors is an integer number (68719135).

Almost surely, 2^137438269 is an apocalyptic number.

It is an amenable number.

137438269 is a deficient number, since it is larger than the sum of its proper divisors (1).

137438269 is an equidigital number, since it uses as much as digits as its factorization.

137438269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 43.

The square root of 137438269 is about 11723.4068853725. The cubic root of 137438269 is about 516.0628053373.

The spelling of 137438269 in words is "one hundred thirty-seven million, four hundred thirty-eight thousand, two hundred sixty-nine".