225076121 has 2 divisors, whose sum is σ = 225076122. Its totient is φ = 225076120.

The previous prime is 225076079. The next prime is 225076123. The reversal of 225076121 is 121670522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 183331600 + 41744521 = 13540^2 + 6461^2 .

It is a cyclic number.

It is not a de Polignac number, because 225076121 - 2¹⁸ = 224813977 is a prime.

Together with 225076123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (225076123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112538060 + 112538061.

It is an arithmetic number, because the mean of its divisors is an integer number (112538061).

Almost surely, 2^225076121 is an apocalyptic number.

It is an amenable number.

225076121 is a deficient number, since it is larger than the sum of its proper divisors (1).

225076121 is an equidigital number, since it uses as much as digits as its factorization.

225076121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 225076121 is about 15002.5371520953. The cubic root of 225076121 is about 608.2887819420.

The spelling of 225076121 in words is "two hundred twenty-five million, seventy-six thousand, one hundred twenty-one".