109724845 has 16 divisors (see below), whose sum is σ = 133193088. Its totient is φ = 86771520.

The previous prime is 109724833. The next prime is 109724861. The reversal of 109724845 is 548427901.

It is not a de Polignac number, because 109724845 - 2⁹ = 109724333 is a prime.

It is a super-2 number, since 2×109724845² = 24079083220548050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 109724798 and 109724807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276187 + ... + 276583.

It is an arithmetic number, because the mean of its divisors is an integer number (8324568).

Almost surely, 2^109724845 is an apocalyptic number.

It is an amenable number.

109724845 is a deficient number, since it is larger than the sum of its proper divisors (23468243).

109724845 is a wasteful number, since it uses less digits than its factorization.

109724845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 109724845 is about 10474.9627684303. The cubic root of 109724845 is about 478.7421420903.

The spelling of 109724845 in words is "one hundred nine million, seven hundred twenty-four thousand, eight hundred forty-five".