109198772 has 6 divisors (see below), whose sum is σ = 191097858. Its totient is φ = 54599384.

The previous prime is 109198763. The next prime is 109198783. The reversal of 109198772 is 277891901.

It can be written as a sum of positive squares in only one way, i.e., 108284836 + 913936 = 10406^2 + 956^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13649843 + ... + 13649850.

It is an arithmetic number, because the mean of its divisors is an integer number (31849643).

Almost surely, 2^109198772 is an apocalyptic number.

It is an amenable number.

109198772 is a deficient number, since it is larger than the sum of its proper divisors (81899086).

109198772 is a wasteful number, since it uses less digits than its factorization.

109198772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27299697 (or 27299695 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 44.

The square root of 109198772 is about 10449.8216252719. The cubic root of 109198772 is about 477.9758103571.

It can be divided in two parts, 10919 and 8772, that added together give a palindrome (19691).

The spelling of 109198772 in words is "one hundred nine million, one hundred ninety-eight thousand, seven hundred seventy-two".