109169247 has 16 divisors (see below), whose sum is σ = 165696768. Its totient is φ = 63286080.

The previous prime is 109169239. The next prime is 109169251. The reversal of 109169247 is 742961901.

It is not a de Polignac number, because 109169247 - 2³ = 109169239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109169227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71158 + ... + 72675.

It is an arithmetic number, because the mean of its divisors is an integer number (10356048).

Almost surely, 2^109169247 is an apocalyptic number.

109169247 is a deficient number, since it is larger than the sum of its proper divisors (56527521).

109169247 is a wasteful number, since it uses less digits than its factorization.

109169247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143870.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 109169247 is about 10448.4088262280. The cubic root of 109169247 is about 477.9327283468.

The spelling of 109169247 in words is "one hundred nine million, one hundred sixty-nine thousand, two hundred forty-seven".