225043031 has 2 divisors, whose sum is σ = 225043032. Its totient is φ = 225043030.

The previous prime is 225042989. The next prime is 225043057. The reversal of 225043031 is 130340522.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225043031 - 2⁶ = 225042967 is a prime.

It is a super-2 number, since 2×225043031² = 101288731603333922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 225042994 and 225043012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225042031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112521515 + 112521516.

It is an arithmetic number, because the mean of its divisors is an integer number (112521516).

Almost surely, 2^225043031 is an apocalyptic number.

225043031 is a deficient number, since it is larger than the sum of its proper divisors (1).

225043031 is an equidigital number, since it uses as much as digits as its factorization.

225043031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 225043031 is about 15001.4342980930. The cubic root of 225043031 is about 608.2589708982.

Adding to 225043031 its reverse (130340522), we get a palindrome (355383553).

The spelling of 225043031 in words is "two hundred twenty-five million, forty-three thousand, thirty-one".