265101649 has 2 divisors, whose sum is σ = 265101650. Its totient is φ = 265101648.

The previous prime is 265101593. The next prime is 265101653. The reversal of 265101649 is 946101562.

265101649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224550225 + 40551424 = 14985^2 + 6368^2 .

It is a cyclic number.

It is not a de Polignac number, because 265101649 - 2¹³ = 265093457 is a prime.

It is not a weakly prime, because it can be changed into another prime (265104649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132550824 + 132550825.

It is an arithmetic number, because the mean of its divisors is an integer number (132550825).

Almost surely, 2^265101649 is an apocalyptic number.

It is an amenable number.

265101649 is a deficient number, since it is larger than the sum of its proper divisors (1).

265101649 is an equidigital number, since it uses as much as digits as its factorization.

265101649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 265101649 is about 16281.9424209767. The cubic root of 265101649 is about 642.3979451020.

The spelling of 265101649 in words is "two hundred sixty-five million, one hundred one thousand, six hundred forty-nine".