225640167 has 8 divisors (see below), whose sum is σ = 318550896. Its totient is φ = 141578112.

The previous prime is 225640147. The next prime is 225640183. The reversal of 225640167 is 761046522.

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

It is not a de Polignac number, because 225640167 - 2¹⁰ = 225639143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225640147) 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, 2212108 + ... + 2212209.

It is an arithmetic number, because the mean of its divisors is an integer number (39818862).

Almost surely, 2^225640167 is an apocalyptic number.

225640167 is a deficient number, since it is larger than the sum of its proper divisors (92910729).

225640167 is a wasteful number, since it uses less digits than its factorization.

225640167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4424337.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 225640167 is about 15021.3237432658. The cubic root of 225640167 is about 608.7964866883.

Adding to 225640167 its reverse (761046522), we get a palindrome (986686689).

The spelling of 225640167 in words is "two hundred twenty-five million, six hundred forty thousand, one hundred sixty-seven".