1330463621 has 4 divisors (see below), whose sum is σ = 1330559244. Its totient is φ = 1330368000.

The previous prime is 1330463609. The next prime is 1330463623. The reversal of 1330463621 is 1263640331.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1263640331 = 5107 ⋅247433.

It can be written as a sum of positive squares in 2 ways, for example, as 1171350625 + 159112996 = 34225^2 + 12614^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1330463621 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 (1330463623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22460 + ... + 56261.

It is an arithmetic number, because the mean of its divisors is an integer number (332639811).

Almost surely, 2^1330463621 is an apocalyptic number.

It is an amenable number.

1330463621 is a deficient number, since it is larger than the sum of its proper divisors (95623).

1330463621 is an equidigital number, since it uses as much as digits as its factorization.

1330463621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95622.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 1330463621 is about 36475.5208461785. The cubic root of 1330463621 is about 1099.8522173367.

The spelling of 1330463621 in words is "one billion, three hundred thirty million, four hundred sixty-three thousand, six hundred twenty-one".