11914091 has 4 divisors (see below), whose sum is σ = 13616112. Its totient is φ = 10212072.

The previous prime is 11914087. The next prime is 11914109. The reversal of 11914091 is 19041911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19041911 = 7 ⋅2720273.

It is a cyclic number.

It is not a de Polignac number, because 11914091 - 2² = 11914087 is a prime.

It is a super-4 number, since 4×11914091⁴ (a number of 29 digits) contains 4444 as substring.

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 11914091.

It is not an unprimeable number, because it can be changed into a prime (11914031) 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, 851000 + ... + 851013.

It is an arithmetic number, because the mean of its divisors is an integer number (3404028).

Almost surely, 2^11914091 is an apocalyptic number.

11914091 is a deficient number, since it is larger than the sum of its proper divisors (1702021).

11914091 is an equidigital number, since it uses as much as digits as its factorization.

11914091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702020.

The product of its (nonzero) digits is 324, while the sum is 26.

The square root of 11914091 is about 3451.6794462986. The cubic root of 11914091 is about 228.3951992247.

It can be divided in two parts, 11 and 914091, that multiplied together give a palindrome (10055001).

The spelling of 11914091 in words is "eleven million, nine hundred fourteen thousand, ninety-one".