11315541 has 4 divisors (see below), whose sum is σ = 15087392. Its totient is φ = 7543692.

The previous prime is 11315537. The next prime is 11315543. The reversal of 11315541 is 14551311.

It is a happy number.

11315541 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 not a de Polignac number, because 11315541 - 2² = 11315537 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 (11315543) 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, 1885921 + ... + 1885926.

It is an arithmetic number, because the mean of its divisors is an integer number (3771848).

Almost surely, 2^11315541 is an apocalyptic number.

It is an amenable number.

11315541 is a deficient number, since it is larger than the sum of its proper divisors (3771851).

11315541 is an equidigital number, since it uses as much as digits as its factorization.

11315541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3771850.

The product of its digits is 300, while the sum is 21.

The square root of 11315541 is about 3363.8580528911. The cubic root of 11315541 is about 224.5045294827.

Adding to 11315541 its reverse (14551311), we get a palindrome (25866852).

The spelling of 11315541 in words is "eleven million, three hundred fifteen thousand, five hundred forty-one".