10291265 has 4 divisors (see below), whose sum is σ = 12349524. Its totient is φ = 8233008.

The previous prime is 10291243. The next prime is 10291277. The reversal of 10291265 is 56219201.

It is a Cunningham number, because it is equal to 3208²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3701776 + 6589489 = 1924^2 + 2567^2 .

It is a cyclic number.

It is not a de Polignac number, because 10291265 - 2²⁰ = 9242689 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1029122 + ... + 1029131.

It is an arithmetic number, because the mean of its divisors is an integer number (3087381).

Almost surely, 2^10291265 is an apocalyptic number.

It is an amenable number.

10291265 is a deficient number, since it is larger than the sum of its proper divisors (2058259).

10291265 is an equidigital number, since it uses as much as digits as its factorization.

10291265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058258.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 10291265 is about 3208.0001558603. Note that the first 3 decimals coincide. The cubic root of 10291265 is about 217.5151880881.

The spelling of 10291265 in words is "ten million, two hundred ninety-one thousand, two hundred sixty-five".