4232581 has 2 divisors, whose sum is σ = 4232582. Its totient is φ = 4232580.

The previous prime is 4232549. The next prime is 4232593. The reversal of 4232581 is 1852324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2873025 + 1359556 = 1695^2 + 1166^2 .

It is a cyclic number.

It is not a de Polignac number, because 4232581 - 2⁵ = 4232549 is a prime.

It is a super-2 number, since 2×4232581² = 35829483843122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4262581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2116290 + 2116291.

It is an arithmetic number, because the mean of its divisors is an integer number (2116291).

Almost surely, 2^4232581 is an apocalyptic number.

It is an amenable number.

4232581 is a deficient number, since it is larger than the sum of its proper divisors (1).

4232581 is an equidigital number, since it uses as much as digits as its factorization.

4232581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 25.

The square root of 4232581 is about 2057.3237470073. The cubic root of 4232581 is about 161.7589897912.

It can be divided in two parts, 42 and 32581, that added together give a palindrome (32623).

The spelling of 4232581 in words is "four million, two hundred thirty-two thousand, five hundred eighty-one".