225184531 has 8 divisors (see below), whose sum is σ = 264552624. Its totient is φ = 188965920.

The previous prime is 225184529. The next prime is 225184537. The reversal of 225184531 is 135481522.

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

It is not a de Polignac number, because 225184531 - 2¹ = 225184529 is a prime.

It is a super-2 number, since 2×225184531² = 101416146003379922, 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 = 225184493 and 225184502.

It is not an unprimeable number, because it can be changed into a prime (225184537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 787216 + ... + 787501.

It is an arithmetic number, because the mean of its divisors is an integer number (33069078).

Almost surely, 2^225184531 is an apocalyptic number.

225184531 is a deficient number, since it is larger than the sum of its proper divisors (39368093).

225184531 is a wasteful number, since it uses less digits than its factorization.

225184531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574741.

The product of its digits is 9600, while the sum is 31.

The square root of 225184531 is about 15006.1497726765. The cubic root of 225184531 is about 608.3864289096.

The spelling of 225184531 in words is "two hundred twenty-five million, one hundred eighty-four thousand, five hundred thirty-one".