11457261 has 8 divisors (see below), whose sum is σ = 16973760. Its totient is φ = 7638156.

The previous prime is 11457241. The next prime is 11457263. The reversal of 11457261 is 16275411.

It is a happy number.

It is not a de Polignac number, because 11457261 - 2⁹ = 11456749 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 424343 = 11457261 / (1 + 1 + 4 + 5 + 7 + 2 + 6 + 1).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11457263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212145 + ... + 212198.

It is an arithmetic number, because the mean of its divisors is an integer number (2121720).

Almost surely, 2^11457261 is an apocalyptic number.

It is an amenable number.

11457261 is a deficient number, since it is larger than the sum of its proper divisors (5516499).

11457261 is an equidigital number, since it uses as much as digits as its factorization.

11457261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424352 (or 424346 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 11457261 is about 3384.8576040950. The cubic root of 11457261 is about 225.4379027413.

It can be divided in two parts, 114 and 57261, that added together give a palindrome (57375).

The spelling of 11457261 in words is "eleven million, four hundred fifty-seven thousand, two hundred sixty-one".