225331131 has 8 divisors (see below), whose sum is σ = 310801680. Its totient is φ = 145040672.

The previous prime is 225331091. The next prime is 225331159. The reversal of 225331131 is 131133522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225331131 - 2⁷ = 225331003 is a prime.

It is a super-2 number, since 2×225331131² = 101548237195478322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 225331098 and 225331107.

It is not an unprimeable number, because it can be changed into a prime (225331031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1294920 + ... + 1295093.

It is an arithmetic number, because the mean of its divisors is an integer number (38850210).

Almost surely, 2^225331131 is an apocalyptic number.

225331131 is a deficient number, since it is larger than the sum of its proper divisors (85470549).

225331131 is a wasteful number, since it uses less digits than its factorization.

225331131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2590045.

The product of its digits is 540, while the sum is 21.

The square root of 225331131 is about 15011.0336419582. The cubic root of 225331131 is about 608.5184245109.

Adding to 225331131 its reverse (131133522), we get a palindrome (356464653).

The spelling of 225331131 in words is "two hundred twenty-five million, three hundred thirty-one thousand, one hundred thirty-one".