2538281 has 2 divisors, whose sum is σ = 2538282. Its totient is φ = 2538280.

The previous prime is 2538241. The next prime is 2538293. The reversal of 2538281 is 1828352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2128681 + 409600 = 1459^2 + 640^2 .

It is a cyclic number.

It is not a de Polignac number, because 2538281 - 2¹⁸ = 2276137 is a prime.

It is a super-2 number, since 2×2538281² = 12885740869922, which contains 22 as substring.

It is a zygodrome in base 5.

It is not a weakly prime, because it can be changed into another prime (2538241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1269140 + 1269141.

It is an arithmetic number, because the mean of its divisors is an integer number (1269141).

2^2538281 is an apocalyptic number.

2538281 is the 713-rd centered decagonal number.

It is an amenable number.

2538281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2538281 is an equidigital number, since it uses as much as digits as its factorization.

2538281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 29.

The square root of 2538281 is about 1593.1983555101. The cubic root of 2538281 is about 136.4101122524.

The spelling of 2538281 in words is "two million, five hundred thirty-eight thousand, two hundred eighty-one".