137976269 has 2 divisors, whose sum is σ = 137976270. Its totient is φ = 137976268.

The previous prime is 137976263. The next prime is 137976317. The reversal of 137976269 is 962679731.

137976269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136002244 + 1974025 = 11662^2 + 1405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137976269 is a prime.

It is a super-2 number, since 2×137976269² = 38074901614320722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137976263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68988134 + 68988135.

It is an arithmetic number, because the mean of its divisors is an integer number (68988135).

Almost surely, 2^137976269 is an apocalyptic number.

It is an amenable number.

137976269 is a deficient number, since it is larger than the sum of its proper divisors (1).

137976269 is an equidigital number, since it uses as much as digits as its factorization.

137976269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 857304, while the sum is 50.

The square root of 137976269 is about 11746.3300226071. The cubic root of 137976269 is about 516.7353019237.

The spelling of 137976269 in words is "one hundred thirty-seven million, nine hundred seventy-six thousand, two hundred sixty-nine".