109379285 has 4 divisors (see below), whose sum is σ = 131255148. Its totient is φ = 87503424.

The previous prime is 109379273. The next prime is 109379299. The reversal of 109379285 is 582973901.

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

It can be written as a sum of positive squares in 2 ways, for example, as 48804196 + 60575089 = 6986^2 + 7783^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109379285 is a prime.

It is a super-2 number, since 2×109379285² = 23927655974222450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10937924 + ... + 10937933.

It is an arithmetic number, because the mean of its divisors is an integer number (32813787).

Almost surely, 2^109379285 is an apocalyptic number.

It is an amenable number.

109379285 is a deficient number, since it is larger than the sum of its proper divisors (21875863).

109379285 is an equidigital number, since it uses as much as digits as its factorization.

109379285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21875862.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 109379285 is about 10458.4551918531. The cubic root of 109379285 is about 478.2390408764.

The spelling of 109379285 in words is "one hundred nine million, three hundred seventy-nine thousand, two hundred eighty-five".