126166757 has 2 divisors, whose sum is σ = 126166758. Its totient is φ = 126166756.

The previous prime is 126166751. The next prime is 126166759. The reversal of 126166757 is 757661621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63218401 + 62948356 = 7951^2 + 7934^2 .

It is a cyclic number.

It is not a de Polignac number, because 126166757 - 2¹⁸ = 125904613 is a prime.

Together with 126166759, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126166751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63083378 + 63083379.

It is an arithmetic number, because the mean of its divisors is an integer number (63083379).

Almost surely, 2^126166757 is an apocalyptic number.

It is an amenable number.

126166757 is a deficient number, since it is larger than the sum of its proper divisors (1).

126166757 is an equidigital number, since it uses as much as digits as its factorization.

126166757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 41.

The square root of 126166757 is about 11232.3976514367. The cubic root of 126166757 is about 501.5508606888.

The spelling of 126166757 in words is "one hundred twenty-six million, one hundred sixty-six thousand, seven hundred fifty-seven".