225997142 has 8 divisors (see below), whose sum is σ = 387423696. Its totient is φ = 96855912.

The previous prime is 225997111. The next prime is 225997151. The reversal of 225997142 is 241799522.

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

It is a self number, because there is not a number n which added to its sum of digits gives 225997142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8071313 + ... + 8071340.

It is an arithmetic number, because the mean of its divisors is an integer number (48427962).

Almost surely, 2^225997142 is an apocalyptic number.

225997142 is a deficient number, since it is larger than the sum of its proper divisors (161426554).

225997142 is a wasteful number, since it uses less digits than its factorization.

225997142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16142662.

The product of its digits is 90720, while the sum is 41.

The square root of 225997142 is about 15033.2013224063. The cubic root of 225997142 is about 609.1173672340.

The spelling of 225997142 in words is "two hundred twenty-five million, nine hundred ninety-seven thousand, one hundred forty-two".