109976645 has 8 divisors (see below), whose sum is σ = 132088056. Its totient is φ = 87903936.

The previous prime is 109976641. The next prime is 109976651. The reversal of 109976645 is 546679901.

It can be written as a sum of positive squares in 4 ways, for example, as 20449 + 109956196 = 143^2 + 10486^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109976645 - 2² = 109976641 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 109976645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109976641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3002 + ... + 15131.

It is an arithmetic number, because the mean of its divisors is an integer number (16511007).

Almost surely, 2^109976645 is an apocalyptic number.

It is an amenable number.

109976645 is a deficient number, since it is larger than the sum of its proper divisors (22111411).

109976645 is a wasteful number, since it uses less digits than its factorization.

109976645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19351.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 109976645 is about 10486.9750166576. The cubic root of 109976645 is about 479.1080731210.

The spelling of 109976645 in words is "one hundred nine million, nine hundred seventy-six thousand, six hundred forty-five".