11491394 has 4 divisors (see below), whose sum is σ = 17237094. Its totient is φ = 5745696.

The previous prime is 11491373. The next prime is 11491397. The reversal of 11491394 is 49319411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49319411 = 101 ⋅488311.

It can be written as a sum of positive squares in only one way, i.e., 10465225 + 1026169 = 3235^2 + 1013^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11491394.

It is not an unprimeable number, because it can be changed into a prime (11491397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2872847 + ... + 2872850.

Almost surely, 2^11491394 is an apocalyptic number.

11491394 is a deficient number, since it is larger than the sum of its proper divisors (5745700).

11491394 is an equidigital number, since it uses as much as digits as its factorization.

11491394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5745699.

The product of its digits is 3888, while the sum is 32.

The square root of 11491394 is about 3389.8958686072. The cubic root of 11491394 is about 225.6615525630.

The spelling of 11491394 in words is "eleven million, four hundred ninety-one thousand, three hundred ninety-four".