109405401 has 16 divisors (see below), whose sum is σ = 175488000. Its totient is φ = 59226768.

The previous prime is 109405397. The next prime is 109405403. The reversal of 109405401 is 104504901.

It is not a de Polignac number, because 109405401 - 2² = 109405397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109405403) 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 15 ways as a sum of consecutive naturals, for example, 136701 + ... + 137498.

It is an arithmetic number, because the mean of its divisors is an integer number (10968000).

Almost surely, 2^109405401 is an apocalyptic number.

It is an amenable number.

109405401 is a deficient number, since it is larger than the sum of its proper divisors (66082599).

109405401 is a wasteful number, since it uses less digits than its factorization.

109405401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274228.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 109405401 is about 10459.7036764910. The cubic root of 109405401 is about 478.2771001759.

The spelling of 109405401 in words is "one hundred nine million, four hundred five thousand, four hundred one".