225101771 has 2 divisors, whose sum is σ = 225101772. Its totient is φ = 225101770.

The previous prime is 225101761. The next prime is 225101783. The reversal of 225101771 is 177101522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225101771 - 2⁶ = 225101707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225101771.

It is not a weakly prime, because it can be changed into another prime (225101761) 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 as a sum of consecutive naturals, namely, 112550885 + 112550886.

It is an arithmetic number, because the mean of its divisors is an integer number (112550886).

Almost surely, 2^225101771 is an apocalyptic number.

225101771 is a deficient number, since it is larger than the sum of its proper divisors (1).

225101771 is an equidigital number, since it uses as much as digits as its factorization.

225101771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 980, while the sum is 26.

The square root of 225101771 is about 15003.3919831483. The cubic root of 225101771 is about 608.3118882205.

The spelling of 225101771 in words is "two hundred twenty-five million, one hundred one thousand, seven hundred seventy-one".