109609597 has 2 divisors, whose sum is σ = 109609598. Its totient is φ = 109609596.

The previous prime is 109609571. The next prime is 109609601. The reversal of 109609597 is 795906901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102697956 + 6911641 = 10134^2 + 2629^2 .

It is a cyclic number.

It is not a de Polignac number, because 109609597 - 2⁷ = 109609469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109609517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54804798 + 54804799.

It is an arithmetic number, because the mean of its divisors is an integer number (54804799).

Almost surely, 2^109609597 is an apocalyptic number.

It is an amenable number.

109609597 is a deficient number, since it is larger than the sum of its proper divisors (1).

109609597 is an equidigital number, since it uses as much as digits as its factorization.

109609597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 153090, while the sum is 46.

The square root of 109609597 is about 10469.4602057604. The cubic root of 109609597 is about 478.5744699379.

The spelling of 109609597 in words is "one hundred nine million, six hundred nine thousand, five hundred ninety-seven".