1109544454 has 4 divisors (see below), whose sum is σ = 1664316684. Its totient is φ = 554772226.

The previous prime is 1109544451. The next prime is 1109544473. The reversal of 1109544454 is 4544459011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4544459011 = 59 ⋅77024729.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109544451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277386112 + ... + 277386115.

It is an arithmetic number, because the mean of its divisors is an integer number (416079171).

Almost surely, 2^1109544454 is an apocalyptic number.

1109544454 is a deficient number, since it is larger than the sum of its proper divisors (554772230).

1109544454 is an equidigital number, since it uses as much as digits as its factorization.

1109544454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554772229.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 1109544454 is about 33309.8251871726. The cubic root of 1109544454 is about 1035.2571428887.

The spelling of 1109544454 in words is "one billion, one hundred nine million, five hundred forty-four thousand, four hundred fifty-four".