109149874 has 4 divisors (see below), whose sum is σ = 163724814. Its totient is φ = 54574936.

The previous prime is 109149869. The next prime is 109149883. The reversal of 109149874 is 478941901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 478941901 = 17 ⋅28173053.

It can be written as a sum of positive squares in only one way, i.e., 94381225 + 14768649 = 9715^2 + 3843^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 109149874.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27287467 + ... + 27287470.

Almost surely, 2^109149874 is an apocalyptic number.

109149874 is a deficient number, since it is larger than the sum of its proper divisors (54574940).

109149874 is an equidigital number, since it uses as much as digits as its factorization.

109149874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54574939.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 109149874 is about 10447.4817061338. The cubic root of 109149874 is about 477.9044556151.

The spelling of 109149874 in words is "one hundred nine million, one hundred forty-nine thousand, eight hundred seventy-four".