109455643 has 8 divisors (see below), whose sum is σ = 124598016. Its totient is φ = 95178600.

The previous prime is 109455629. The next prime is 109455649. The reversal of 109455643 is 346554901.

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

It is not a de Polignac number, because 109455643 - 2⁵ = 109455611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109455649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216063 + ... + 216568.

It is an arithmetic number, because the mean of its divisors is an integer number (15574752).

Almost surely, 2^109455643 is an apocalyptic number.

109455643 is a deficient number, since it is larger than the sum of its proper divisors (15142373).

109455643 is a wasteful number, since it uses less digits than its factorization.

109455643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432665.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 109455643 is about 10462.1050941003. The cubic root of 109455643 is about 478.3503016828.

The spelling of 109455643 in words is "one hundred nine million, four hundred fifty-five thousand, six hundred forty-three".