109811970 has 64 divisors (see below), whose sum is σ = 293984640. Its totient is φ = 29168064.

The previous prime is 109811969. The next prime is 109812007. The reversal of 109811970 is 79118901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84949 + ... + 86231.

It is an arithmetic number, because the mean of its divisors is an integer number (4593510).

Almost surely, 2^109811970 is an apocalyptic number.

109811970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 109811970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146992320).

109811970 is an abundant number, since it is smaller than the sum of its proper divisors (184172670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109811970 is a wasteful number, since it uses less digits than its factorization.

109811970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616 (or 1610 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 36.

The square root of 109811970 is about 10479.1206692165. The cubic root of 109811970 is about 478.8688207053.

The spelling of 109811970 in words is "one hundred nine million, eight hundred eleven thousand, nine hundred seventy".