109491039 has 36 divisors (see below), whose sum is σ = 189933120. Its totient is φ = 60540480.

The previous prime is 109491013. The next prime is 109491049. The reversal of 109491039 is 930194901.

It is not a de Polignac number, because 109491039 - 2⁵ = 109491007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109490994 and 109491012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109491049) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9667 + ... + 17675.

It is an arithmetic number, because the mean of its divisors is an integer number (5275920).

Almost surely, 2^109491039 is an apocalyptic number.

109491039 is a deficient number, since it is larger than the sum of its proper divisors (80442081).

109491039 is a wasteful number, since it uses less digits than its factorization.

109491039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8060 (or 8050 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 109491039 is about 10463.7965863256. The cubic root of 109491039 is about 478.4018594402.

The spelling of 109491039 in words is "one hundred nine million, four hundred ninety-one thousand, thirty-nine".