1321514863 has 4 divisors (see below), whose sum is σ = 1343913480. Its totient is φ = 1299116248.

The previous prime is 1321514849. The next prime is 1321514869. The reversal of 1321514863 is 3684151231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1321514863 - 2²¹ = 1319417711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321514869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11199220 + ... + 11199337.

It is an arithmetic number, because the mean of its divisors is an integer number (335978370).

Almost surely, 2^1321514863 is an apocalyptic number.

1321514863 is a deficient number, since it is larger than the sum of its proper divisors (22398617).

1321514863 is an equidigital number, since it uses as much as digits as its factorization.

1321514863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22398616.

The product of its digits is 17280, while the sum is 34.

The square root of 1321514863 is about 36352.6458871978. The cubic root of 1321514863 is about 1097.3807829159.

The spelling of 1321514863 in words is "one billion, three hundred twenty-one million, five hundred fourteen thousand, eight hundred sixty-three".