109772147 has 12 divisors (see below), whose sum is σ = 114631920. Its totient is φ = 105104880.

The previous prime is 109772107. The next prime is 109772149. The reversal of 109772147 is 741277901.

It is not a de Polignac number, because 109772147 - 2⁶ = 109772083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 109772147.

It is not an unprimeable number, because it can be changed into a prime (109772149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98429 + ... + 99537.

It is an arithmetic number, because the mean of its divisors is an integer number (9552660).

Almost surely, 2^109772147 is an apocalyptic number.

109772147 is a deficient number, since it is larger than the sum of its proper divisors (4859773).

109772147 is a wasteful number, since it uses less digits than its factorization.

109772147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274 (or 1243 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 38.

The square root of 109772147 is about 10477.2203851976. The cubic root of 109772147 is about 478.8109268991.

The spelling of 109772147 in words is "one hundred nine million, seven hundred seventy-two thousand, one hundred forty-seven".