225440167 has 4 divisors (see below), whose sum is σ = 228293920. Its totient is φ = 222586416.

The previous prime is 225440107. The next prime is 225440177. The reversal of 225440167 is 761044522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225440167 - 2¹¹ = 225438119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225440107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1426758 + ... + 1426915.

It is an arithmetic number, because the mean of its divisors is an integer number (57073480).

Almost surely, 2^225440167 is an apocalyptic number.

225440167 is a deficient number, since it is larger than the sum of its proper divisors (2853753).

225440167 is an equidigital number, since it uses as much as digits as its factorization.

225440167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853752.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 225440167 is about 15014.6650645294. The cubic root of 225440167 is about 608.6165611441.

Adding to 225440167 its reverse (761044522), we get a palindrome (986484689).

The spelling of 225440167 in words is "two hundred twenty-five million, four hundred forty thousand, one hundred sixty-seven".