118248817 has 2 divisors, whose sum is σ = 118248818. Its totient is φ = 118248816.

The previous prime is 118248763. The next prime is 118248827. The reversal of 118248817 is 718842811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117418896 + 829921 = 10836^2 + 911^2 .

It is an emirp because it is prime and its reverse (718842811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118248817 - 2²³ = 109860209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118248817.

It is not a weakly prime, because it can be changed into another prime (118248827) 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, 59124408 + 59124409.

It is an arithmetic number, because the mean of its divisors is an integer number (59124409).

Almost surely, 2^118248817 is an apocalyptic number.

It is an amenable number.

118248817 is a deficient number, since it is larger than the sum of its proper divisors (1).

118248817 is an equidigital number, since it uses as much as digits as its factorization.

118248817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28672, while the sum is 40.

The square root of 118248817 is about 10874.2271909318. The cubic root of 118248817 is about 490.8313210002.

The spelling of 118248817 in words is "one hundred eighteen million, two hundred forty-eight thousand, eight hundred seventeen".