109266391 has 8 divisors (see below), whose sum is σ = 117754784. Its totient is φ = 100789920.

The previous prime is 109266389. The next prime is 109266467. The reversal of 109266391 is 193662901.

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

It is a cyclic number.

It is not a de Polignac number, because 109266391 - 2¹ = 109266389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 109266391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109266301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28225 + ... + 31861.

It is an arithmetic number, because the mean of its divisors is an integer number (14719348).

Almost surely, 2^109266391 is an apocalyptic number.

109266391 is a deficient number, since it is larger than the sum of its proper divisors (8488393).

109266391 is a wasteful number, since it uses less digits than its factorization.

109266391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5961.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 109266391 is about 10453.0565386398. The cubic root of 109266391 is about 478.0744487600.

The spelling of 109266391 in words is "one hundred nine million, two hundred sixty-six thousand, three hundred ninety-one".