109609601 has 2 divisors, whose sum is σ = 109609602. Its totient is φ = 109609600.

The previous prime is 109609597. The next prime is 109609603. The reversal of 109609601 is 106906901.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75082225 + 34527376 = 8665^2 + 5876^2 .

It is a cyclic number.

It is not a de Polignac number, because 109609601 - 2² = 109609597 is a prime.

Together with 109609603, it forms a pair of twin primes.

It is a Chen prime.

109609601 is a strobogrammatic number because it is the same when read upside-down.

It is not a weakly prime, because it can be changed into another prime (109609603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54804800 + 54804801.

It is an arithmetic number, because the mean of its divisors is an integer number (54804801).

Almost surely, 2^109609601 is an apocalyptic number.

It is an amenable number.

109609601 is a deficient number, since it is larger than the sum of its proper divisors (1).

109609601 is an equidigital number, since it uses as much as digits as its factorization.

109609601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 109609601 is about 10469.4603967922. The cubic root of 109609601 is about 478.5744757595.

The spelling of 109609601 in words is "one hundred nine million, six hundred nine thousand, six hundred one".