118151213 has 2 divisors, whose sum is σ = 118151214. Its totient is φ = 118151212.

The previous prime is 118151203. The next prime is 118151221. The reversal of 118151213 is 312151811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89453764 + 28697449 = 9458^2 + 5357^2 .

It is an emirp because it is prime and its reverse (312151811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118151213 - 2⁸ = 118150957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118151203) 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, 59075606 + 59075607.

It is an arithmetic number, because the mean of its divisors is an integer number (59075607).

Almost surely, 2^118151213 is an apocalyptic number.

It is an amenable number.

118151213 is a deficient number, since it is larger than the sum of its proper divisors (1).

118151213 is an equidigital number, since it uses as much as digits as its factorization.

118151213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 23.

The square root of 118151213 is about 10869.7384053159. The cubic root of 118151213 is about 490.6962377958.

The spelling of 118151213 in words is "one hundred eighteen million, one hundred fifty-one thousand, two hundred thirteen".