225106279 has 4 divisors (see below), whose sum is σ = 227210184. Its totient is φ = 223002376.

The previous prime is 225106249. The next prime is 225106303. The reversal of 225106279 is 972601522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 972601522 = 2 ⋅486300761.

It is a cyclic number.

It is not a de Polignac number, because 225106279 - 2⁹ = 225105767 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 (225106249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051792 + ... + 1052005.

It is an arithmetic number, because the mean of its divisors is an integer number (56802546).

Almost surely, 2^225106279 is an apocalyptic number.

225106279 is a deficient number, since it is larger than the sum of its proper divisors (2103905).

225106279 is a wasteful number, since it uses less digits than its factorization.

225106279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103904.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 225106279 is about 15003.5422150904. The cubic root of 225106279 is about 608.3159489788.

The spelling of 225106279 in words is "two hundred twenty-five million, one hundred six thousand, two hundred seventy-nine".