11454991 has 8 divisors (see below), whose sum is σ = 12176784. Its totient is φ = 10738560.

The previous prime is 11454983. The next prime is 11454997. The reversal of 11454991 is 19945411.

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

It is not a de Polignac number, because 11454991 - 2³ = 11454983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11454997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3621 + ... + 6001.

It is an arithmetic number, because the mean of its divisors is an integer number (1522098).

Almost surely, 2^11454991 is an apocalyptic number.

11454991 is a deficient number, since it is larger than the sum of its proper divisors (721793).

11454991 is a wasteful number, since it uses less digits than its factorization.

11454991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2681.

The product of its digits is 6480, while the sum is 34.

The square root of 11454991 is about 3384.5222705723. The cubic root of 11454991 is about 225.4230132652.

The spelling of 11454991 in words is "eleven million, four hundred fifty-four thousand, nine hundred ninety-one".