126350621 has 2 divisors, whose sum is σ = 126350622. Its totient is φ = 126350620.

The previous prime is 126350603. The next prime is 126350717. The reversal of 126350621 is 126053621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72914521 + 53436100 = 8539^2 + 7310^2 .

It is an emirp because it is prime and its reverse (126053621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126350621 - 2⁶ = 126350557 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126350321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63175310 + 63175311.

It is an arithmetic number, because the mean of its divisors is an integer number (63175311).

Almost surely, 2^126350621 is an apocalyptic number.

It is an amenable number.

126350621 is a deficient number, since it is larger than the sum of its proper divisors (1).

126350621 is an equidigital number, since it uses as much as digits as its factorization.

126350621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 126350621 is about 11240.5792110549. The cubic root of 126350621 is about 501.7943806925.

The spelling of 126350621 in words is "one hundred twenty-six million, three hundred fifty thousand, six hundred twenty-one".