126356057 has 2 divisors, whose sum is σ = 126356058. Its totient is φ = 126356056.

The previous prime is 126356039. The next prime is 126356063. The reversal of 126356057 is 750653621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87965641 + 38390416 = 9379^2 + 6196^2 .

It is a cyclic number.

It is not a de Polignac number, because 126356057 - 2¹⁴ = 126339673 is a prime.

It is not a weakly prime, because it can be changed into another prime (126355057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63178028 + 63178029.

It is an arithmetic number, because the mean of its divisors is an integer number (63178029).

Almost surely, 2^126356057 is an apocalyptic number.

It is an amenable number.

126356057 is a deficient number, since it is larger than the sum of its proper divisors (1).

126356057 is an equidigital number, since it uses as much as digits as its factorization.

126356057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 126356057 is about 11240.8210109404. The cubic root of 126356057 is about 501.8015768453.

The spelling of 126356057 in words is "one hundred twenty-six million, three hundred fifty-six thousand, fifty-seven".