225997143 has 8 divisors (see below), whose sum is σ = 302995056. Its totient is φ = 149832000.

The previous prime is 225997111. The next prime is 225997151. The reversal of 225997143 is 341799522.

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

It is not a de Polignac number, because 225997143 - 2⁵ = 225997111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225997095 and 225997104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225997543) 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, 207558 + ... + 208643.

It is an arithmetic number, because the mean of its divisors is an integer number (37874382).

Almost surely, 2^225997143 is an apocalyptic number.

225997143 is a deficient number, since it is larger than the sum of its proper divisors (76997913).

225997143 is a wasteful number, since it uses less digits than its factorization.

225997143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416385.

The product of its digits is 136080, while the sum is 42.

The square root of 225997143 is about 15033.2013556661. The cubic root of 225997143 is about 609.1173681324.

The spelling of 225997143 in words is "two hundred twenty-five million, nine hundred ninety-seven thousand, one hundred forty-three".