109190797 has 4 divisors (see below), whose sum is σ = 110271996. Its totient is φ = 108109600.

The previous prime is 109190791. The next prime is 109190843. The reversal of 109190797 is 797091901.

109190797 is nontrivially palindromic in base 6.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 797091901 = 131 ⋅6084671.

It can be written as a sum of positive squares in 2 ways, for example, as 98783721 + 10407076 = 9939^2 + 3226^2 .

It is a cyclic number.

It is not a de Polignac number, because 109190797 - 2¹¹ = 109188749 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 (109190791) 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, 540448 + ... + 540649.

It is an arithmetic number, because the mean of its divisors is an integer number (27567999).

Almost surely, 2^109190797 is an apocalyptic number.

It is an amenable number.

109190797 is a deficient number, since it is larger than the sum of its proper divisors (1081199).

109190797 is a wasteful number, since it uses less digits than its factorization.

109190797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081198.

The product of its (nonzero) digits is 35721, while the sum is 43.

The square root of 109190797 is about 10449.4400328439. The cubic root of 109190797 is about 477.9641742376.

The spelling of 109190797 in words is "one hundred nine million, one hundred ninety thousand, seven hundred ninety-seven".