109021972 has 12 divisors (see below), whose sum is σ = 190874880. Its totient is φ = 54486296.

The previous prime is 109021961. The next prime is 109021973. The reversal of 109021972 is 279120901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109021973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6783 + ... + 16249.

It is an arithmetic number, because the mean of its divisors is an integer number (15906240).

Almost surely, 2^109021972 is an apocalyptic number.

It is an amenable number.

109021972 is a deficient number, since it is larger than the sum of its proper divisors (81852908).

109021972 is a wasteful number, since it uses less digits than its factorization.

109021972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12350 (or 12348 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 109021972 is about 10441.3587238443. The cubic root of 109021972 is about 477.7177129146.

The spelling of 109021972 in words is "one hundred nine million, twenty-one thousand, nine hundred seventy-two".