11465641 has 4 divisors (see below), whose sum is σ = 12507984. Its totient is φ = 10423300.

The previous prime is 11465639. The next prime is 11465653. The reversal of 11465641 is 14656411.

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.

It is a cyclic number.

It is not a de Polignac number, because 11465641 - 2¹ = 11465639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11465611) 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, 521155 + ... + 521176.

It is an arithmetic number, because the mean of its divisors is an integer number (3126996).

Almost surely, 2^11465641 is an apocalyptic number.

11465641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11465641 is a deficient number, since it is larger than the sum of its proper divisors (1042343).

11465641 is a wasteful number, since it uses less digits than its factorization.

11465641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042342.

The product of its digits is 2880, while the sum is 28.

The square root of 11465641 is about 3386.0952437875. The cubic root of 11465641 is about 225.4928521521.

The spelling of 11465641 in words is "eleven million, four hundred sixty-five thousand, six hundred forty-one".