109166458 has 4 divisors (see below), whose sum is σ = 163749690. Its totient is φ = 54583228.

The previous prime is 109166417. The next prime is 109166459. The reversal of 109166458 is 854661901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 854661901 = 1321 ⋅646981.

It can be written as a sum of positive squares in only one way, i.e., 64850809 + 44315649 = 8053^2 + 6657^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 109166458.

It is not an unprimeable number, because it can be changed into a prime (109166459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27291613 + ... + 27291616.

Almost surely, 2^109166458 is an apocalyptic number.

109166458 is a deficient number, since it is larger than the sum of its proper divisors (54583232).

109166458 is an equidigital number, since it uses as much as digits as its factorization.

109166458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54583231.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 109166458 is about 10448.2753600774. The cubic root of 109166458 is about 477.9286583186.

The spelling of 109166458 in words is "one hundred nine million, one hundred sixty-six thousand, four hundred fifty-eight".