126204037 has 2 divisors, whose sum is σ = 126204038. Its totient is φ = 126204036.

The previous prime is 126204017. The next prime is 126204041. The reversal of 126204037 is 730402621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125753796 + 450241 = 11214^2 + 671^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126204037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126204017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63102018 + 63102019.

It is an arithmetic number, because the mean of its divisors is an integer number (63102019).

Almost surely, 2^126204037 is an apocalyptic number.

It is an amenable number.

126204037 is a deficient number, since it is larger than the sum of its proper divisors (1).

126204037 is an equidigital number, since it uses as much as digits as its factorization.

126204037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 126204037 is about 11234.0570142758. The cubic root of 126204037 is about 501.6002555670.

Adding to 126204037 its reverse (730402621), we get a palindrome (856606658).

The spelling of 126204037 in words is "one hundred twenty-six million, two hundred four thousand, thirty-seven".