11481519 has 8 divisors (see below), whose sum is σ = 17495680. Its totient is φ = 6560856.

The previous prime is 11481497. The next prime is 11481521. The reversal of 11481519 is 91518411.

It is a happy number.

11481519 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11481519 - 2⁵ = 11481487 is a prime.

It is a super-2 number, since 2×11481519² = 263650557094722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11481319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273349 + ... + 273390.

It is an arithmetic number, because the mean of its divisors is an integer number (2186960).

Almost surely, 2^11481519 is an apocalyptic number.

11481519 is a deficient number, since it is larger than the sum of its proper divisors (6014161).

11481519 is an equidigital number, since it uses as much as digits as its factorization.

11481519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546749.

The product of its digits is 1440, while the sum is 30.

The square root of 11481519 is about 3388.4390211423. The cubic root of 11481519 is about 225.5968941338.

The spelling of 11481519 in words is "eleven million, four hundred eighty-one thousand, five hundred nineteen".