126406061 has 2 divisors, whose sum is σ = 126406062. Its totient is φ = 126406060.

The previous prime is 126406051. The next prime is 126406073. The reversal of 126406061 is 160604621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116229961 + 10176100 = 10781^2 + 3190^2 .

It is an emirp because it is prime and its reverse (160604621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126406061 - 2²² = 122211757 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 126406061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126406001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63203030 + 63203031.

It is an arithmetic number, because the mean of its divisors is an integer number (63203031).

Almost surely, 2^126406061 is an apocalyptic number.

It is an amenable number.

126406061 is a deficient number, since it is larger than the sum of its proper divisors (1).

126406061 is an equidigital number, since it uses as much as digits as its factorization.

126406061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 126406061 is about 11243.0450056913. The cubic root of 126406061 is about 501.8677622408.

The spelling of 126406061 in words is "one hundred twenty-six million, four hundred six thousand, sixty-one".