204225157 has 2 divisors, whose sum is σ = 204225158. Its totient is φ = 204225156.

The previous prime is 204225121. The next prime is 204225173. The reversal of 204225157 is 751522402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135815716 + 68409441 = 11654^2 + 8271^2 .

It is a cyclic number.

It is not a de Polignac number, because 204225157 - 2¹⁹ = 203700869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204225187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102112578 + 102112579.

It is an arithmetic number, because the mean of its divisors is an integer number (102112579).

Almost surely, 2^204225157 is an apocalyptic number.

It is an amenable number.

204225157 is a deficient number, since it is larger than the sum of its proper divisors (1).

204225157 is an equidigital number, since it uses as much as digits as its factorization.

204225157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 204225157 is about 14290.7367549752. The cubic root of 204225157 is about 588.8930282702.

Adding to 204225157 its reverse (751522402), we get a palindrome (955747559).

The spelling of 204225157 in words is "two hundred four million, two hundred twenty-five thousand, one hundred fifty-seven".