109271085 has 64 divisors (see below), whose sum is σ = 220631040. Its totient is φ = 44858880.

The previous prime is 109271081. The next prime is 109271089. The reversal of 109271085 is 580172901.

It is an interprime number because it is at equal distance from previous prime (109271081) and next prime (109271089).

It is not a de Polignac number, because 109271085 - 2² = 109271081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109271081) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 102264 + ... + 103326.

It is an arithmetic number, because the mean of its divisors is an integer number (3447360).

Almost surely, 2^109271085 is an apocalyptic number.

109271085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109271085 is an abundant number, since it is smaller than the sum of its proper divisors (111359955).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109271085 is a wasteful number, since it uses less digits than its factorization.

109271085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 109271085 is about 10453.2810638574. The cubic root of 109271085 is about 478.0812945654.

The spelling of 109271085 in words is "one hundred nine million, two hundred seventy-one thousand, eighty-five".