109159845 has 32 divisors (see below), whose sum is σ = 184442880. Its totient is φ = 54976320.

The previous prime is 109159837. The next prime is 109159847. The reversal of 109159845 is 548951901.

It is not a de Polignac number, because 109159845 - 2³ = 109159837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109159797 and 109159806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109159847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172680 + ... + 173310.

It is an arithmetic number, because the mean of its divisors is an integer number (5763840).

Almost surely, 2^109159845 is an apocalyptic number.

109159845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109159845 is a deficient number, since it is larger than the sum of its proper divisors (75283035).

109159845 is a wasteful number, since it uses less digits than its factorization.

109159845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265.

The product of its (nonzero) digits is 64800, while the sum is 42.

The square root of 109159845 is about 10447.9588915730. The cubic root of 109159845 is about 477.9190075947.

The spelling of 109159845 in words is "one hundred nine million, one hundred fifty-nine thousand, eight hundred forty-five".