11641261 has 8 divisors (see below), whose sum is σ = 12039104. Its totient is φ = 11249280.

The previous prime is 11641249. The next prime is 11641313. The reversal of 11641261 is 16214611.

11641261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11641261 - 2⁵ = 11641229 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 (11641211) 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, 2776 + ... + 5566.

It is an arithmetic number, because the mean of its divisors is an integer number (1504888).

Almost surely, 2^11641261 is an apocalyptic number.

It is an amenable number.

11641261 is a deficient number, since it is larger than the sum of its proper divisors (397843).

11641261 is an equidigital number, since it uses as much as digits as its factorization.

11641261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2931.

The product of its digits is 288, while the sum is 22.

The square root of 11641261 is about 3411.9292196644. The cubic root of 11641261 is about 226.6383199365.

Adding to 11641261 its reverse (16214611), we get a palindrome (27855872).

The spelling of 11641261 in words is "eleven million, six hundred forty-one thousand, two hundred sixty-one".