11841257 has 4 divisors (see below), whose sum is σ = 12003540. Its totient is φ = 11678976.

The previous prime is 11841239. The next prime is 11841281. The reversal of 11841257 is 75214811.

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 9357481 + 2483776 = 3059^2 + 1576^2 .

It is a cyclic number.

It is not a de Polignac number, because 11841257 - 2²² = 7646953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11841217) 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, 81032 + ... + 81177.

It is an arithmetic number, because the mean of its divisors is an integer number (3000885).

Almost surely, 2^11841257 is an apocalyptic number.

It is an amenable number.

11841257 is a deficient number, since it is larger than the sum of its proper divisors (162283).

11841257 is an equidigital number, since it uses as much as digits as its factorization.

11841257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162282.

The product of its digits is 2240, while the sum is 29.

The square root of 11841257 is about 3441.1127560718. The cubic root of 11841257 is about 227.9288341040.

The spelling of 11841257 in words is "eleven million, eight hundred forty-one thousand, two hundred fifty-seven".