126204497 has 2 divisors, whose sum is σ = 126204498. Its totient is φ = 126204496.

The previous prime is 126204461. The next prime is 126204499. The reversal of 126204497 is 794402621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110649361 + 15555136 = 10519^2 + 3944^2 .

It is a cyclic number.

It is not a de Polignac number, because 126204497 - 2²⁶ = 59095633 is a prime.

Together with 126204499, 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 (126204499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63102248 + 63102249.

It is an arithmetic number, because the mean of its divisors is an integer number (63102249).

Almost surely, 2^126204497 is an apocalyptic number.

It is an amenable number.

126204497 is a deficient number, since it is larger than the sum of its proper divisors (1).

126204497 is an equidigital number, since it uses as much as digits as its factorization.

126204497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 126204497 is about 11234.0774877157. The cubic root of 126204497 is about 501.6008649924.

The spelling of 126204497 in words is "one hundred twenty-six million, two hundred four thousand, four hundred ninety-seven".