1213014389 has 2 divisors, whose sum is σ = 1213014390. Its totient is φ = 1213014388.

The previous prime is 1213014377. The next prime is 1213014403. The reversal of 1213014389 is 9834103121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 872907025 + 340107364 = 29545^2 + 18442^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213014389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213014329) 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, 606507194 + 606507195.

It is an arithmetic number, because the mean of its divisors is an integer number (606507195).

Almost surely, 2^1213014389 is an apocalyptic number.

It is an amenable number.

1213014389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213014389 is an equidigital number, since it uses as much as digits as its factorization.

1213014389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1213014389 is about 34828.3561053346. The cubic root of 1213014389 is about 1066.4863899217.

The spelling of 1213014389 in words is "one billion, two hundred thirteen million, fourteen thousand, three hundred eighty-nine".