109072538 has 8 divisors (see below), whose sum is σ = 169250580. Its totient is φ = 52655680.

The previous prime is 109072531. The next prime is 109072547. The reversal of 109072538 is 835270901.

It can be written as a sum of positive squares in 2 ways, for example, as 96491329 + 12581209 = 9823^2 + 3547^2 .

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

It is a super-2 number, since 2×109072538² = 23793637091522888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 109072498 and 109072507.

It is not an unprimeable number, because it can be changed into a prime (109072531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 940223 + ... + 940338.

Almost surely, 2^109072538 is an apocalyptic number.

109072538 is a deficient number, since it is larger than the sum of its proper divisors (60178042).

109072538 is a wasteful number, since it uses less digits than its factorization.

109072538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880592.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 109072538 is about 10443.7798712918. The cubic root of 109072538 is about 477.7915590080.

The spelling of 109072538 in words is "one hundred nine million, seventy-two thousand, five hundred thirty-eight".