118224857 has 2 divisors, whose sum is σ = 118224858. Its totient is φ = 118224856.

The previous prime is 118224809. The next prime is 118224863. The reversal of 118224857 is 758422811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105185536 + 13039321 = 10256^2 + 3611^2 .

It is an emirp because it is prime and its reverse (758422811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118224857 - 2¹⁴ = 118208473 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118224857.

It is not a weakly prime, because it can be changed into another prime (118224877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59112428 + 59112429.

It is an arithmetic number, because the mean of its divisors is an integer number (59112429).

Almost surely, 2^118224857 is an apocalyptic number.

It is an amenable number.

118224857 is a deficient number, since it is larger than the sum of its proper divisors (1).

118224857 is an equidigital number, since it uses as much as digits as its factorization.

118224857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35840, while the sum is 38.

The square root of 118224857 is about 10873.1254476346. The cubic root of 118224857 is about 490.7981674258.

The spelling of 118224857 in words is "one hundred eighteen million, two hundred twenty-four thousand, eight hundred fifty-seven".