126513043 has 2 divisors, whose sum is σ = 126513044. Its totient is φ = 126513042.

The previous prime is 126513007. The next prime is 126513053. The reversal of 126513043 is 340315621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126513043 - 2²⁵ = 92958611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126512999 and 126513017.

It is not a weakly prime, because it can be changed into another prime (126513053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63256521 + 63256522.

It is an arithmetic number, because the mean of its divisors is an integer number (63256522).

Almost surely, 2^126513043 is an apocalyptic number.

126513043 is a deficient number, since it is larger than the sum of its proper divisors (1).

126513043 is an equidigital number, since it uses as much as digits as its factorization.

126513043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 126513043 is about 11247.8016963316. The cubic root of 126513043 is about 502.0093052354.

Adding to 126513043 its reverse (340315621), we get a palindrome (466828664).

The spelling of 126513043 in words is "one hundred twenty-six million, five hundred thirteen thousand, forty-three".