11541973 has 4 divisors (see below), whose sum is σ = 11704608. Its totient is φ = 11379340.

The previous prime is 11541967. The next prime is 11541989. The reversal of 11541973 is 37914511.

11541973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11541973 - 2⁵ = 11541941 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11541923) 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, 81211 + ... + 81352.

It is an arithmetic number, because the mean of its divisors is an integer number (2926152).

Almost surely, 2^11541973 is an apocalyptic number.

It is an amenable number.

11541973 is a deficient number, since it is larger than the sum of its proper divisors (162635).

11541973 is an equidigital number, since it uses as much as digits as its factorization.

11541973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162634.

The product of its digits is 3780, while the sum is 31.

The square root of 11541973 is about 3397.3479362585. The cubic root of 11541973 is about 225.9921486817.

The spelling of 11541973 in words is "eleven million, five hundred forty-one thousand, nine hundred seventy-three".