225342031 has 4 divisors (see below), whose sum is σ = 225379000. Its totient is φ = 225305064.

The previous prime is 225342023. The next prime is 225342041. The reversal of 225342031 is 130243522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225342031 - 2³ = 225342023 is a prime.

It is a super-2 number, since 2×225342031² = 101558061870409922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225341993 and 225342011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225342041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6936 + ... + 22333.

It is an arithmetic number, because the mean of its divisors is an integer number (56344750).

Almost surely, 2^225342031 is an apocalyptic number.

225342031 is a deficient number, since it is larger than the sum of its proper divisors (36969).

225342031 is an equidigital number, since it uses as much as digits as its factorization.

225342031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36968.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 225342031 is about 15011.3967038381. The cubic root of 225342031 is about 608.5282363581.

Adding to 225342031 its reverse (130243522), we get a palindrome (355585553).

The spelling of 225342031 in words is "two hundred twenty-five million, three hundred forty-two thousand, thirty-one".