109554865 has 16 divisors (see below), whose sum is σ = 156780288. Its totient is φ = 71856576.

The previous prime is 109554833. The next prime is 109554881. The reversal of 109554865 is 568455901.

It is a cyclic number.

It is not a de Polignac number, because 109554865 - 2⁵ = 109554833 is a prime.

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, 67242 + ... + 68851.

It is an arithmetic number, because the mean of its divisors is an integer number (9798768).

Almost surely, 2^109554865 is an apocalyptic number.

It is an amenable number.

109554865 is a deficient number, since it is larger than the sum of its proper divisors (47225423).

109554865 is a wasteful number, since it uses less digits than its factorization.

109554865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136128.

The product of its (nonzero) digits is 216000, while the sum is 43.

The square root of 109554865 is about 10466.8459910328. The cubic root of 109554865 is about 478.4948002144.

The spelling of 109554865 in words is "one hundred nine million, five hundred fifty-four thousand, eight hundred sixty-five".