126546257 has 2 divisors, whose sum is σ = 126546258. Its totient is φ = 126546256.

The previous prime is 126546193. The next prime is 126546263. The reversal of 126546257 is 752645621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101586241 + 24960016 = 10079^2 + 4996^2 .

It is a cyclic number.

It is not a de Polignac number, because 126546257 - 2⁶ = 126546193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126546257.

It is not a weakly prime, because it can be changed into another prime (126545257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63273128 + 63273129.

It is an arithmetic number, because the mean of its divisors is an integer number (63273129).

Almost surely, 2^126546257 is an apocalyptic number.

It is an amenable number.

126546257 is a deficient number, since it is larger than the sum of its proper divisors (1).

126546257 is an equidigital number, since it uses as much as digits as its factorization.

126546257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 38.

The square root of 126546257 is about 11249.2780657249. The cubic root of 126546257 is about 502.0532329278.

The spelling of 126546257 in words is "one hundred twenty-six million, five hundred forty-six thousand, two hundred fifty-seven".