225102061 has 2 divisors, whose sum is σ = 225102062. Its totient is φ = 225102060.

The previous prime is 225102041. The next prime is 225102091. The reversal of 225102061 is 160201522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 215179561 + 9922500 = 14669^2 + 3150^2 .

It is a cyclic number.

It is not a de Polignac number, because 225102061 - 2²¹ = 223004909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225102041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112551030 + 112551031.

It is an arithmetic number, because the mean of its divisors is an integer number (112551031).

Almost surely, 2^225102061 is an apocalyptic number.

It is an amenable number.

225102061 is a deficient number, since it is larger than the sum of its proper divisors (1).

225102061 is an equidigital number, since it uses as much as digits as its factorization.

225102061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 225102061 is about 15003.4016476264. The cubic root of 225102061 is about 608.3121494510.

Adding to 225102061 its reverse (160201522), we get a palindrome (385303583).

The spelling of 225102061 in words is "two hundred twenty-five million, one hundred two thousand, sixty-one".