11214919 has 4 divisors (see below), whose sum is σ = 11356960. Its totient is φ = 11072880.

The previous prime is 11214881. The next prime is 11214943. The reversal of 11214919 is 91941211.

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

It is a cyclic number.

It is not a de Polignac number, because 11214919 - 2¹⁵ = 11182151 is a prime.

It is a super-2 number, since 2×11214919² = 251548816353122, 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 (11214719) 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, 70902 + ... + 71059.

It is an arithmetic number, because the mean of its divisors is an integer number (2839240).

Almost surely, 2^11214919 is an apocalyptic number.

11214919 is a deficient number, since it is larger than the sum of its proper divisors (142041).

11214919 is an equidigital number, since it uses as much as digits as its factorization.

11214919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142040.

The product of its digits is 648, while the sum is 28.

The square root of 11214919 is about 3348.8683163122. The cubic root of 11214919 is about 223.8370879119.

The spelling of 11214919 in words is "eleven million, two hundred fourteen thousand, nine hundred nineteen".