225440105 has 8 divisors (see below), whose sum is σ = 295121664. Its totient is φ = 163956400.

The previous prime is 225440101. The next prime is 225440107. The reversal of 225440105 is 501044522.

It is a happy number.

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

It is not a de Polignac number, because 225440105 - 2² = 225440101 is a prime.

It is a super-2 number, since 2×225440105² = 101646481884822050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (225440101) 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, 2049401 + ... + 2049510.

It is an arithmetic number, because the mean of its divisors is an integer number (36890208).

Almost surely, 2^225440105 is an apocalyptic number.

It is an amenable number.

225440105 is a deficient number, since it is larger than the sum of its proper divisors (69681559).

225440105 is a wasteful number, since it uses less digits than its factorization.

225440105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4098927.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 225440105 is about 15014.6629998811. The cubic root of 225440105 is about 608.6165053507.

Adding to 225440105 its reverse (501044522), we get a palindrome (726484627).

The spelling of 225440105 in words is "two hundred twenty-five million, four hundred forty thousand, one hundred five".