4815281 has 2 divisors, whose sum is σ = 4815282. Its totient is φ = 4815280.

The previous prime is 4815259. The next prime is 4815289. The reversal of 4815281 is 1825184.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3783025 + 1032256 = 1945^2 + 1016^2 .

It is a cyclic number.

It is not a de Polignac number, because 4815281 - 2¹⁸ = 4553137 is a prime.

It is a super-2 number, since 2×4815281² = 46373862217922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4815289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2407640 + 2407641.

It is an arithmetic number, because the mean of its divisors is an integer number (2407641).

Almost surely, 2^4815281 is an apocalyptic number.

It is an amenable number.

4815281 is a deficient number, since it is larger than the sum of its proper divisors (1).

4815281 is an equidigital number, since it uses as much as digits as its factorization.

4815281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2560, while the sum is 29.

The square root of 4815281 is about 2194.3748540302. The cubic root of 4815281 is about 168.8653503059.

The spelling of 4815281 in words is "four million, eight hundred fifteen thousand, two hundred eighty-one".