11541955 has 4 divisors (see below), whose sum is σ = 13850352. Its totient is φ = 9233560.

The previous prime is 11541947. The next prime is 11541967. The reversal of 11541955 is 55914511.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11541955 - 2³ = 11541947 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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154191 + ... + 1154200.

It is an arithmetic number, because the mean of its divisors is an integer number (3462588).

Almost surely, 2^11541955 is an apocalyptic number.

11541955 is a deficient number, since it is larger than the sum of its proper divisors (2308397).

11541955 is an equidigital number, since it uses as much as digits as its factorization.

11541955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2308396.

The product of its digits is 4500, while the sum is 31.

The square root of 11541955 is about 3397.3452871323. The cubic root of 11541955 is about 225.9920312015.

The spelling of 11541955 in words is "eleven million, five hundred forty-one thousand, nine hundred fifty-five".