11541919 has 2 divisors, whose sum is σ = 11541920. Its totient is φ = 11541918.

The previous prime is 11541917. The next prime is 11541923. The reversal of 11541919 is 91914511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11541919 - 2¹ = 11541917 is a prime.

It is a super-2 number, since 2×11541919² = 266431788405122, which contains 22 as substring.

Together with 11541917, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11541917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5770959 + 5770960.

It is an arithmetic number, because the mean of its divisors is an integer number (5770960).

Almost surely, 2^11541919 is an apocalyptic number.

11541919 is a deficient number, since it is larger than the sum of its proper divisors (1).

11541919 is an equidigital number, since it uses as much as digits as its factorization.

11541919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 31.

The square root of 11541919 is about 3397.3399888736. The cubic root of 11541919 is about 225.9917962407.

The spelling of 11541919 in words is "eleven million, five hundred forty-one thousand, nine hundred nineteen".