109072505 has 8 divisors (see below), whose sum is σ = 134079624. Its totient is φ = 85129600.

The previous prime is 109072489. The next prime is 109072511. The reversal of 109072505 is 505270901.

It can be written as a sum of positive squares in 4 ways, for example, as 162409 + 108910096 = 403^2 + 10436^2 .

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

It is not a de Polignac number, because 109072505 - 2⁴ = 109072489 is a prime.

It is a super-2 number, since 2×109072505² = 23793622693950050, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265826 + ... + 266235.

It is an arithmetic number, because the mean of its divisors is an integer number (16759953).

Almost surely, 2^109072505 is an apocalyptic number.

It is an amenable number.

109072505 is a deficient number, since it is larger than the sum of its proper divisors (25007119).

109072505 is an equidigital number, since it uses as much as digits as its factorization.

109072505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532107.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 109072505 is about 10443.7782914039. The cubic root of 109072505 is about 477.7915108225.

The spelling of 109072505 in words is "one hundred nine million, seventy-two thousand, five hundred five".