265938137 has 2 divisors, whose sum is σ = 265938138. Its totient is φ = 265938136.

The previous prime is 265938103. The next prime is 265938143. The reversal of 265938137 is 731839562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236821321 + 29116816 = 15389^2 + 5396^2 .

It is a cyclic number.

It is not a de Polignac number, because 265938137 - 2⁶ = 265938073 is a prime.

It is a super-2 number, since 2×265938137² = 141446185422061538, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (265938037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132969068 + 132969069.

It is an arithmetic number, because the mean of its divisors is an integer number (132969069).

Almost surely, 2^265938137 is an apocalyptic number.

It is an amenable number.

265938137 is a deficient number, since it is larger than the sum of its proper divisors (1).

265938137 is an equidigital number, since it uses as much as digits as its factorization.

265938137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 44.

The square root of 265938137 is about 16307.6097880713. The cubic root of 265938137 is about 643.0728987521.

The spelling of 265938137 in words is "two hundred sixty-five million, nine hundred thirty-eight thousand, one hundred thirty-seven".