109919943 has 32 divisors (see below), whose sum is σ = 197061120. Its totient is φ = 59114880.

The previous prime is 109919941. The next prime is 109919951. The reversal of 109919943 is 349919901.

It is not a de Polignac number, because 109919943 - 2¹ = 109919941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109919941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13893 + ... + 20318.

It is an arithmetic number, because the mean of its divisors is an integer number (6158160).

Almost surely, 2^109919943 is an apocalyptic number.

109919943 is a deficient number, since it is larger than the sum of its proper divisors (87141177).

109919943 is a wasteful number, since it uses less digits than its factorization.

109919943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34244 (or 34238 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 45.

The square root of 109919943 is about 10484.2712193075. The cubic root of 109919943 is about 479.0257191020.

The spelling of 109919943 in words is "one hundred nine million, nine hundred nineteen thousand, nine hundred forty-three".