10240261 has 4 divisors (see below), whose sum is σ = 10570624. Its totient is φ = 9909900.

The previous prime is 10240229. The next prime is 10240301. The reversal of 10240261 is 16204201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16204201 = 13 ⋅1246477.

It is a cyclic number.

It is not a de Polignac number, because 10240261 - 2⁵ = 10240229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10240211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165135 + ... + 165196.

It is an arithmetic number, because the mean of its divisors is an integer number (2642656).

Almost surely, 2^10240261 is an apocalyptic number.

It is an amenable number.

10240261 is a deficient number, since it is larger than the sum of its proper divisors (330363).

10240261 is an equidigital number, since it uses as much as digits as its factorization.

10240261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330362.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 10240261 is about 3200.0407809901. The cubic root of 10240261 is about 217.1552542676.

Adding to 10240261 its reverse (16204201), we get a palindrome (26444462).

It can be divided in two parts, 10240 and 261, that added together give a palindrome (10501).

The spelling of 10240261 in words is "ten million, two hundred forty thousand, two hundred sixty-one".