4566149281 has 2 divisors, whose sum is σ = 4566149282. Its totient is φ = 4566149280.

The previous prime is 4566149279. The next prime is 4566149321. The reversal of 4566149281 is 1829416654.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3719048256 + 847101025 = 60984^2 + 29105^2 .

It is a cyclic number.

It is not a de Polignac number, because 4566149281 - 2¹ = 4566149279 is a prime.

It is a super-2 number, since 2×4566149281² = 41699438512753633922, which contains 22 as substring.

Together with 4566149279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4566149261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2283074640 + 2283074641.

It is an arithmetic number, because the mean of its divisors is an integer number (2283074641).

Almost surely, 2^4566149281 is an apocalyptic number.

It is an amenable number.

4566149281 is a deficient number, since it is larger than the sum of its proper divisors (1).

4566149281 is an equidigital number, since it uses as much as digits as its factorization.

4566149281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 46.

The square root of 4566149281 is about 67573.2882210123. The cubic root of 4566149281 is about 1659.0139400777.

The spelling of 4566149281 in words is "four billion, five hundred sixty-six million, one hundred forty-nine thousand, two hundred eighty-one".