126204461 has 2 divisors, whose sum is σ = 126204462. Its totient is φ = 126204460.

The previous prime is 126204457. The next prime is 126204497. The reversal of 126204461 is 164402621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99102025 + 27102436 = 9955^2 + 5206^2 .

It is an emirp because it is prime and its reverse (164402621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126204461 - 2² = 126204457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126204461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126204401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63102230 + 63102231.

It is an arithmetic number, because the mean of its divisors is an integer number (63102231).

Almost surely, 2^126204461 is an apocalyptic number.

It is an amenable number.

126204461 is a deficient number, since it is larger than the sum of its proper divisors (1).

126204461 is an equidigital number, since it uses as much as digits as its factorization.

126204461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 126204461 is about 11234.0758854478. The cubic root of 126204461 is about 501.6008172982.

The spelling of 126204461 in words is "one hundred twenty-six million, two hundred four thousand, four hundred sixty-one".