4542321281 has 2 divisors, whose sum is σ = 4542321282. Its totient is φ = 4542321280.

The previous prime is 4542321269. The next prime is 4542321337. The reversal of 4542321281 is 1821232454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4541546881 + 774400 = 67391^2 + 880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4542321281 is a prime.

It is a super-2 number, since 2×4542321281² = 41265365239650961922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4542321181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2271160640 + 2271160641.

It is an arithmetic number, because the mean of its divisors is an integer number (2271160641).

Almost surely, 2^4542321281 is an apocalyptic number.

It is an amenable number.

4542321281 is a deficient number, since it is larger than the sum of its proper divisors (1).

4542321281 is an equidigital number, since it uses as much as digits as its factorization.

4542321281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15360, while the sum is 32.

The square root of 4542321281 is about 67396.7453294297. The cubic root of 4542321281 is about 1656.1231054726.

The spelling of 4542321281 in words is "four billion, five hundred forty-two million, three hundred twenty-one thousand, two hundred eighty-one".