1418063921 has 2 divisors, whose sum is σ = 1418063922. Its totient is φ = 1418063920.

The previous prime is 1418063903. The next prime is 1418063923. The reversal of 1418063921 is 1293608141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1399882225 + 18181696 = 37415^2 + 4264^2 .

It is a cyclic number.

It is not a de Polignac number, because 1418063921 - 2²⁶ = 1350955057 is a prime.

It is a Sophie Germain prime.

Together with 1418063923, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1418063923) 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, 709031960 + 709031961.

It is an arithmetic number, because the mean of its divisors is an integer number (709031961).

Almost surely, 2^1418063921 is an apocalyptic number.

It is an amenable number.

1418063921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1418063921 is an equidigital number, since it uses as much as digits as its factorization.

1418063921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1418063921 is about 37657.1894994834. The cubic root of 1418063921 is about 1123.4798024391.

The spelling of 1418063921 in words is "one billion, four hundred eighteen million, sixty-three thousand, nine hundred twenty-one".