109149873 has 16 divisors (see below), whose sum is σ = 167057280. Its totient is φ = 62096256.

The previous prime is 109149869. The next prime is 109149883. The reversal of 109149873 is 378941901.

It is a happy number.

It is not a de Polignac number, because 109149873 - 2² = 109149869 is a prime.

It is a super-2 number, since 2×109149873² = 23827389551832258, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (109149863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6540 + ... + 16157.

It is an arithmetic number, because the mean of its divisors is an integer number (10441080).

Almost surely, 2^109149873 is an apocalyptic number.

It is an amenable number.

109149873 is a deficient number, since it is larger than the sum of its proper divisors (57907407).

109149873 is a wasteful number, since it uses less digits than its factorization.

109149873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22936.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 109149873 is about 10447.4816582754. The cubic root of 109149873 is about 477.9044541556.

The spelling of 109149873 in words is "one hundred nine million, one hundred forty-nine thousand, eight hundred seventy-three".