118169393 has 2 divisors, whose sum is σ = 118169394. Its totient is φ = 118169392.

The previous prime is 118169369. The next prime is 118169413. The reversal of 118169393 is 393961811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114661264 + 3508129 = 10708^2 + 1873^2 .

It is a cyclic number.

It is not a de Polignac number, because 118169393 - 2¹⁶ = 118103857 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 118169393.

It is not a weakly prime, because it can be changed into another prime (118169353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59084696 + 59084697.

It is an arithmetic number, because the mean of its divisors is an integer number (59084697).

Almost surely, 2^118169393 is an apocalyptic number.

It is an amenable number.

118169393 is a deficient number, since it is larger than the sum of its proper divisors (1).

118169393 is an equidigital number, since it uses as much as digits as its factorization.

118169393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 41.

The square root of 118169393 is about 10870.5746398247. The cubic root of 118169393 is about 490.7214044159.

The spelling of 118169393 in words is "one hundred eighteen million, one hundred sixty-nine thousand, three hundred ninety-three".