11541491 has 8 divisors (see below), whose sum is σ = 12468960. Its totient is φ = 10619712.

The previous prime is 11541473. The next prime is 11541499. The reversal of 11541491 is 19414511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11541491 - 2⁶ = 11541427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11541491.

It is not an unprimeable number, because it can be changed into a prime (11541499) 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 in 7 ways as a sum of consecutive naturals, for example, 3431 + ... + 5903.

It is an arithmetic number, because the mean of its divisors is an integer number (1558620).

Almost surely, 2^11541491 is an apocalyptic number.

11541491 is a deficient number, since it is larger than the sum of its proper divisors (927469).

11541491 is a wasteful number, since it uses less digits than its factorization.

11541491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2845.

The product of its digits is 720, while the sum is 26.

The square root of 11541491 is about 3397.2769978322. The cubic root of 11541491 is about 225.9890027802.

The spelling of 11541491 in words is "eleven million, five hundred forty-one thousand, four hundred ninety-one".