118314421 has 2 divisors, whose sum is σ = 118314422. Its totient is φ = 118314420.

The previous prime is 118314401. The next prime is 118314431. The reversal of 118314421 is 124413811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63776196 + 54538225 = 7986^2 + 7385^2 .

It is an emirp because it is prime and its reverse (124413811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118314421 - 2¹⁹ = 117790133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118314401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59157210 + 59157211.

It is an arithmetic number, because the mean of its divisors is an integer number (59157211).

Almost surely, 2^118314421 is an apocalyptic number.

It is an amenable number.

118314421 is a deficient number, since it is larger than the sum of its proper divisors (1).

118314421 is an equidigital number, since it uses as much as digits as its factorization.

118314421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768, while the sum is 25.

The square root of 118314421 is about 10877.2432628861. The cubic root of 118314421 is about 490.9220746774.

The spelling of 118314421 in words is "one hundred eighteen million, three hundred fourteen thousand, four hundred twenty-one".