2266531 has 2 divisors, whose sum is σ = 2266532. Its totient is φ = 2266530.

The previous prime is 2266519. The next prime is 2266549. The reversal of 2266531 is 1356622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2266531 - 2⁵ = 2266499 is a prime.

It is a super-2 number, since 2×2266531² = 10274325547922, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹² + 2¹² + 6⁶ + 6⁸ + 5⁴ + 3¹² + 1 .

It is the 1506-th Hogben number.

2266531 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2266496 and 2266505.

It is not a weakly prime, because it can be changed into another prime (2266501) by changing a digit.

It is a nontrivial repunit in base 1505.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1133265 + 1133266.

It is an arithmetic number, because the mean of its divisors is an integer number (1133266).

2^2266531 is an apocalyptic number.

2266531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2266531 is an equidigital number, since it uses as much as digits as its factorization.

2266531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 25.

The square root of 2266531 is about 1505.5002490867. The cubic root of 2266531 is about 131.3572016079.

Subtracting from 2266531 its reverse (1356622), we obtain a palindrome (909909).

The spelling of 2266531 in words is "two million, two hundred sixty-six thousand, five hundred thirty-one".