109143700 has 36 divisors (see below), whose sum is σ = 237324220. Its totient is φ = 43568640.

The previous prime is 109143679. The next prime is 109143707. The reversal of 109143700 is 7341901.

It can be written as a sum of positive squares in 6 ways, for example, as 66564 + 109077136 = 258^2 + 10444^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109143707) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 72556 + ... + 74044.

Almost surely, 2^109143700 is an apocalyptic number.

109143700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109143700 is an abundant number, since it is smaller than the sum of its proper divisors (128180520).

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

109143700 is a wasteful number, since it uses less digits than its factorization.

109143700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236 (or 2229 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 109143700 is about 10447.1862240510. The cubic root of 109143700 is about 477.8954446481.

The spelling of 109143700 in words is "one hundred nine million, one hundred forty-three thousand, seven hundred".