109415959 has 4 divisors (see below), whose sum is σ = 110140720. Its totient is φ = 108691200.

The previous prime is 109415941. The next prime is 109415963. The reversal of 109415959 is 959514901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109415959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109415909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362154 + ... + 362455.

It is an arithmetic number, because the mean of its divisors is an integer number (27535180).

Almost surely, 2^109415959 is an apocalyptic number.

109415959 is a deficient number, since it is larger than the sum of its proper divisors (724761).

109415959 is an equidigital number, since it uses as much as digits as its factorization.

109415959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724760.

The product of its (nonzero) digits is 72900, while the sum is 43.

The square root of 109415959 is about 10460.2083631255. The cubic root of 109415959 is about 478.2924848130.

It can be divided in two parts, 10941 and 5959, that added together give a square (16900 = 130²).

The spelling of 109415959 in words is "one hundred nine million, four hundred fifteen thousand, nine hundred fifty-nine".