109640834 has 4 divisors (see below), whose sum is σ = 164461254. Its totient is φ = 54820416.

The previous prime is 109640833. The next prime is 109640857. The reversal of 109640834 is 438046901.

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

It can be written as a sum of positive squares in only one way, i.e., 109516225 + 124609 = 10465^2 + 353^2 .

It is a super-2 number, since 2×109640834² = 24042224960431112, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 109640794 and 109640803.

It is not an unprimeable number, because it can be changed into a prime (109640833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27410207 + ... + 27410210.

Almost surely, 2^109640834 is an apocalyptic number.

109640834 is a deficient number, since it is larger than the sum of its proper divisors (54820420).

109640834 is an equidigital number, since it uses as much as digits as its factorization.

109640834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54820419.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 109640834 is about 10470.9519147019. The cubic root of 109640834 is about 478.6199276693.

The spelling of 109640834 in words is "one hundred nine million, six hundred forty thousand, eight hundred thirty-four".