109945453 has 4 divisors (see below), whose sum is σ = 112502368. Its totient is φ = 107388540.

The previous prime is 109945447. The next prime is 109945471. The reversal of 109945453 is 354549901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 354549901 = 733 ⋅483697.

It is a cyclic number.

It is not a de Polignac number, because 109945453 - 2¹⁷ = 109814381 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 (109945403) 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, 1278393 + ... + 1278478.

It is an arithmetic number, because the mean of its divisors is an integer number (28125592).

Almost surely, 2^109945453 is an apocalyptic number.

It is an amenable number.

109945453 is a deficient number, since it is larger than the sum of its proper divisors (2556915).

109945453 is an equidigital number, since it uses as much as digits as its factorization.

109945453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2556914.

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 109945453 is about 10485.4877330528. The cubic root of 109945453 is about 479.0627733452.

The spelling of 109945453 in words is "one hundred nine million, nine hundred forty-five thousand, four hundred fifty-three".