4142656481 has 2 divisors, whose sum is σ = 4142656482. Its totient is φ = 4142656480.

The previous prime is 4142656459. The next prime is 4142656519. The reversal of 4142656481 is 1846562414.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2348371600 + 1794284881 = 48460^2 + 42359^2 .

It is a cyclic number.

It is not a de Polignac number, because 4142656481 - 2¹⁸ = 4142394337 is a prime.

It is a super-2 number, since 2×4142656481² = 34323205439142606722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4142656411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2071328240 + 2071328241.

It is an arithmetic number, because the mean of its divisors is an integer number (2071328241).

Almost surely, 2^4142656481 is an apocalyptic number.

It is an amenable number.

4142656481 is a deficient number, since it is larger than the sum of its proper divisors (1).

4142656481 is an equidigital number, since it uses as much as digits as its factorization.

4142656481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 184320, while the sum is 41.

The square root of 4142656481 is about 64363.4716357034. The cubic root of 4142656481 is about 1606.0521410088.

The spelling of 4142656481 in words is "four billion, one hundred forty-two million, six hundred fifty-six thousand, four hundred eighty-one".