218148967 has 2 divisors, whose sum is σ = 218148968. Its totient is φ = 218148966.

The previous prime is 218148907. The next prime is 218148979. The reversal of 218148967 is 769841812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 218148967 - 2⁷ = 218148839 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (218148907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109074483 + 109074484.

It is an arithmetic number, because the mean of its divisors is an integer number (109074484).

Almost surely, 2^218148967 is an apocalyptic number.

218148967 is a deficient number, since it is larger than the sum of its proper divisors (1).

218148967 is an equidigital number, since it uses as much as digits as its factorization.

218148967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 46.

The square root of 218148967 is about 14769.8668578969. The cubic root of 218148967 is about 601.9832217558.

The spelling of 218148967 in words is "two hundred eighteen million, one hundred forty-eight thousand, nine hundred sixty-seven".