126545693 has 2 divisors, whose sum is σ = 126545694. Its totient is φ = 126545692.

The previous prime is 126545687. The next prime is 126545723. The reversal of 126545693 is 396545621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108201604 + 18344089 = 10402^2 + 4283^2 .

It is a cyclic number.

It is not a de Polignac number, because 126545693 - 2⁴ = 126545677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126545693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126545623) 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, 63272846 + 63272847.

It is an arithmetic number, because the mean of its divisors is an integer number (63272847).

Almost surely, 2^126545693 is an apocalyptic number.

It is an amenable number.

126545693 is a deficient number, since it is larger than the sum of its proper divisors (1).

126545693 is an equidigital number, since it uses as much as digits as its factorization.

126545693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 41.

The square root of 126545693 is about 11249.2529974217. The cubic root of 126545693 is about 502.0524870650.

The spelling of 126545693 in words is "one hundred twenty-six million, five hundred forty-five thousand, six hundred ninety-three".