1463312021 has 2 divisors, whose sum is σ = 1463312022. Its totient is φ = 1463312020.

The previous prime is 1463311931. The next prime is 1463312047. The reversal of 1463312021 is 1202133641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1125267025 + 338044996 = 33545^2 + 18386^2 .

It is a cyclic number.

It is not a de Polignac number, because 1463312021 - 2¹⁰ = 1463310997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1463317021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 731656010 + 731656011.

It is an arithmetic number, because the mean of its divisors is an integer number (731656011).

Almost surely, 2^1463312021 is an apocalyptic number.

It is an amenable number.

1463312021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1463312021 is an equidigital number, since it uses as much as digits as its factorization.

1463312021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1463312021 is about 38253.2615733613. The cubic root of 1463312021 is about 1135.3043801892.

Adding to 1463312021 its reverse (1202133641), we get a palindrome (2665445662).

The spelling of 1463312021 in words is "one billion, four hundred sixty-three million, three hundred twelve thousand, twenty-one".