11917454 has 16 divisors (see below), whose sum is σ = 18579456. Its totient is φ = 5727000.

The previous prime is 11917453. The next prime is 11917457. The reversal of 11917454 is 45471911.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11917454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11917453) 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, 9779 + ... + 10929.

It is an arithmetic number, because the mean of its divisors is an integer number (1161216).

Almost surely, 2^11917454 is an apocalyptic number.

11917454 is a deficient number, since it is larger than the sum of its proper divisors (6662002).

11917454 is a wasteful number, since it uses less digits than its factorization.

11917454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351.

The product of its digits is 5040, while the sum is 32.

The square root of 11917454 is about 3452.1665660857. The cubic root of 11917454 is about 228.4166869683.

The spelling of 11917454 in words is "eleven million, nine hundred seventeen thousand, four hundred fifty-four".