109581797 has 12 divisors (see below), whose sum is σ = 124908480. Its totient is φ = 95825808.

The previous prime is 109581781. The next prime is 109581811. The reversal of 109581797 is 797185901.

It is not a de Polignac number, because 109581797 - 2⁴ = 109581781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109581727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13853 + ... + 20274.

It is an arithmetic number, because the mean of its divisors is an integer number (10409040).

Almost surely, 2^109581797 is an apocalyptic number.

It is an amenable number.

109581797 is a deficient number, since it is larger than the sum of its proper divisors (15326683).

109581797 is a wasteful number, since it uses less digits than its factorization.

109581797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34172 (or 34159 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 47.

The square root of 109581797 is about 10468.1324504422. The cubic root of 109581797 is about 478.5340066465.

The spelling of 109581797 in words is "one hundred nine million, five hundred eighty-one thousand, seven hundred ninety-seven".