1214218373 has 2 divisors, whose sum is σ = 1214218374. Its totient is φ = 1214218372.

The previous prime is 1214218361. The next prime is 1214218441. The reversal of 1214218373 is 3738124121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1179372964 + 34845409 = 34342^2 + 5903^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1214218373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1214218303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607109186 + 607109187.

It is an arithmetic number, because the mean of its divisors is an integer number (607109187).

Almost surely, 2^1214218373 is an apocalyptic number.

It is an amenable number.

1214218373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214218373 is an equidigital number, since it uses as much as digits as its factorization.

1214218373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 32.

The square root of 1214218373 is about 34845.6363552167. The cubic root of 1214218373 is about 1066.8391221924.

The spelling of 1214218373 in words is "one billion, two hundred fourteen million, two hundred eighteen thousand, three hundred seventy-three".