11191451 has 4 divisors (see below), whose sum is σ = 11296152. Its totient is φ = 11086752.

The previous prime is 11191429. The next prime is 11191463. The reversal of 11191451 is 15419111.

11191451 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.

It is a cyclic number.

It is not a de Polignac number, because 11191451 - 2¹⁸ = 10929307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11191351) 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, 52190 + ... + 52403.

It is an arithmetic number, because the mean of its divisors is an integer number (2824038).

Almost surely, 2^11191451 is an apocalyptic number.

11191451 is a deficient number, since it is larger than the sum of its proper divisors (104701).

11191451 is a wasteful number, since it uses less digits than its factorization.

11191451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104700.

The product of its digits is 180, while the sum is 23.

The square root of 11191451 is about 3345.3626111380. The cubic root of 11191451 is about 223.6808473084.

The spelling of 11191451 in words is "eleven million, one hundred ninety-one thousand, four hundred fifty-one".