109692139 has 8 divisors (see below), whose sum is σ = 112275072. Its totient is φ = 107128320.

The previous prime is 109692137. The next prime is 109692217. The reversal of 109692139 is 931296901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109692139 - 2¹ = 109692137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109692131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7179 + ... + 16459.

It is an arithmetic number, because the mean of its divisors is an integer number (14034384).

Almost surely, 2^109692139 is an apocalyptic number.

109692139 is a deficient number, since it is larger than the sum of its proper divisors (2582933).

109692139 is an equidigital number, since it uses as much as digits as its factorization.

109692139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9557.

The product of its (nonzero) digits is 26244, while the sum is 40.

The square root of 109692139 is about 10473.4015009451. The cubic root of 109692139 is about 478.6945706812.

The spelling of 109692139 in words is "one hundred nine million, six hundred ninety-two thousand, one hundred thirty-nine".