109088261 has 4 divisors (see below), whose sum is σ = 110716512. Its totient is φ = 107460012.

The previous prime is 109088183. The next prime is 109088263. The reversal of 109088261 is 162880901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 162880901 = 19 ⋅8572679.

It is a cyclic number.

It is not a de Polignac number, because 109088261 - 2²⁶ = 41979397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109088263) 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, 814025 + ... + 814158.

It is an arithmetic number, because the mean of its divisors is an integer number (27679128).

Almost surely, 2^109088261 is an apocalyptic number.

It is an amenable number.

109088261 is a deficient number, since it is larger than the sum of its proper divisors (1628251).

109088261 is an equidigital number, since it uses as much as digits as its factorization.

109088261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628250.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 109088261 is about 10444.5325888716. The cubic root of 109088261 is about 477.8145160721.

The spelling of 109088261 in words is "one hundred nine million, eighty-eight thousand, two hundred sixty-one".