11319491 has 4 divisors (see below), whose sum is σ = 11332392. Its totient is φ = 11306592.

The previous prime is 11319481. The next prime is 11319533. The reversal of 11319491 is 19491311.

11319491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19491311 = 7 ⋅2784473.

It is a cyclic number.

It is not a de Polignac number, because 11319491 - 2¹⁰ = 11318467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11319401) 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, 5030 + ... + 6923.

It is an arithmetic number, because the mean of its divisors is an integer number (2833098).

Almost surely, 2^11319491 is an apocalyptic number.

11319491 is a deficient number, since it is larger than the sum of its proper divisors (12901).

11319491 is an equidigital number, since it uses as much as digits as its factorization.

11319491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12900.

The product of its digits is 972, while the sum is 29.

The square root of 11319491 is about 3364.4451251284. The cubic root of 11319491 is about 224.5306495985.

The spelling of 11319491 in words is "eleven million, three hundred nineteen thousand, four hundred ninety-one".