126544057 has 2 divisors, whose sum is σ = 126544058. Its totient is φ = 126544056.

The previous prime is 126544051. The next prime is 126544087. The reversal of 126544057 is 750445621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121418361 + 5125696 = 11019^2 + 2264^2 .

It is a cyclic number.

It is not a de Polignac number, because 126544057 - 2⁷ = 126543929 is a prime.

It is not a weakly prime, because it can be changed into another prime (126544051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63272028 + 63272029.

It is an arithmetic number, because the mean of its divisors is an integer number (63272029).

Almost surely, 2^126544057 is an apocalyptic number.

It is an amenable number.

126544057 is a deficient number, since it is larger than the sum of its proper divisors (1).

126544057 is an equidigital number, since it uses as much as digits as its factorization.

126544057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 126544057 is about 11249.1802812472. The cubic root of 126544057 is about 502.0503235213.

Adding to 126544057 its reverse (750445621), we get a palindrome (876989678).

The spelling of 126544057 in words is "one hundred twenty-six million, five hundred forty-four thousand, fifty-seven".