126513053 has 2 divisors, whose sum is σ = 126513054. Its totient is φ = 126513052.

The previous prime is 126513043. The next prime is 126513071. The reversal of 126513053 is 350315621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120934009 + 5579044 = 10997^2 + 2362^2 .

It is a cyclic number.

It is not a de Polignac number, because 126513053 - 2⁶ = 126512989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126513043) 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, 63256526 + 63256527.

It is an arithmetic number, because the mean of its divisors is an integer number (63256527).

Almost surely, 2^126513053 is an apocalyptic number.

It is an amenable number.

126513053 is a deficient number, since it is larger than the sum of its proper divisors (1).

126513053 is an equidigital number, since it uses as much as digits as its factorization.

126513053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 126513053 is about 11247.8021408629. The cubic root of 126513053 is about 502.0093184622.

Adding to 126513053 its reverse (350315621), we get a palindrome (476828674).

The spelling of 126513053 in words is "one hundred twenty-six million, five hundred thirteen thousand, fifty-three".