109259497 has 4 divisors (see below), whose sum is σ = 110119936. Its totient is φ = 108399060.

The previous prime is 109259489. The next prime is 109259503. The reversal of 109259497 is 794952901.

It is a happy number.

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: 794952901 = 29 ⋅27412169.

It is a cyclic number.

It is not a de Polignac number, because 109259497 - 2³ = 109259489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109259197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430029 + ... + 430282.

It is an arithmetic number, because the mean of its divisors is an integer number (27529984).

Almost surely, 2^109259497 is an apocalyptic number.

It is an amenable number.

109259497 is a deficient number, since it is larger than the sum of its proper divisors (860439).

109259497 is an equidigital number, since it uses as much as digits as its factorization.

109259497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860438.

The product of its (nonzero) digits is 204120, while the sum is 46.

The square root of 109259497 is about 10452.7267734309. The cubic root of 109259497 is about 478.0643940838.

The spelling of 109259497 in words is "one hundred nine million, two hundred fifty-nine thousand, four hundred ninety-seven".