113695661 has 2 divisors, whose sum is σ = 113695662. Its totient is φ = 113695660.

The previous prime is 113695627. The next prime is 113695663. The reversal of 113695661 is 166596311.

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., 99301225 + 14394436 = 9965^2 + 3794^2 .

It is a cyclic number.

It is not a de Polignac number, because 113695661 - 2¹⁸ = 113433517 is a prime.

It is a Sophie Germain prime.

Together with 113695663, it forms a pair of twin primes.

It is a Chen prime.

It is a pancake number, because a pancake can be divided into 113695661 parts by 15079 straight cuts.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113695663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56847830 + 56847831.

It is an arithmetic number, because the mean of its divisors is an integer number (56847831).

Almost surely, 2^113695661 is an apocalyptic number.

It is an amenable number.

113695661 is a deficient number, since it is larger than the sum of its proper divisors (1).

113695661 is an equidigital number, since it uses as much as digits as its factorization.

113695661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 38.

The square root of 113695661 is about 10662.8167479330. The cubic root of 113695661 is about 484.4488882967.

The spelling of 113695661 in words is "one hundred thirteen million, six hundred ninety-five thousand, six hundred sixty-one".