621130459 has 2 divisors, whose sum is σ = 621130460. Its totient is φ = 621130458.

The previous prime is 621130451. The next prime is 621130481. The reversal of 621130459 is 954031126.

621130459 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 621130459 - 2³ = 621130451 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 621130459.

It is not a weakly prime, because it can be changed into another prime (621130451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310565229 + 310565230.

It is an arithmetic number, because the mean of its divisors is an integer number (310565230).

Almost surely, 2^621130459 is an apocalyptic number.

621130459 is a deficient number, since it is larger than the sum of its proper divisors (1).

621130459 is an equidigital number, since it uses as much as digits as its factorization.

621130459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 621130459 is about 24922.4890209626. The cubic root of 621130459 is about 853.2198334184.

The spelling of 621130459 in words is "six hundred twenty-one million, one hundred thirty thousand, four hundred fifty-nine".