118635397 has 2 divisors, whose sum is σ = 118635398. Its totient is φ = 118635396.

The previous prime is 118635337. The next prime is 118635437. The reversal of 118635397 is 793536811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89378116 + 29257281 = 9454^2 + 5409^2 .

It is a cyclic number.

It is not a de Polignac number, because 118635397 - 2¹⁹ = 118111109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118635337) 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 as a sum of consecutive naturals, namely, 59317698 + 59317699.

It is an arithmetic number, because the mean of its divisors is an integer number (59317699).

Almost surely, 2^118635397 is an apocalyptic number.

It is an amenable number.

118635397 is a deficient number, since it is larger than the sum of its proper divisors (1).

118635397 is an equidigital number, since it uses as much as digits as its factorization.

118635397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 43.

The square root of 118635397 is about 10891.9877432909. The cubic root of 118635397 is about 491.3656157723.

The spelling of 118635397 in words is "one hundred eighteen million, six hundred thirty-five thousand, three hundred ninety-seven".