126510103 has 2 divisors, whose sum is σ = 126510104. Its totient is φ = 126510102.

The previous prime is 126510091. The next prime is 126510193. The reversal of 126510103 is 301015621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126510103 - 2²⁵ = 92955671 is a prime.

It is a super-2 number, since 2×126510103² = 32009612322141218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126510193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63255051 + 63255052.

It is an arithmetic number, because the mean of its divisors is an integer number (63255052).

Almost surely, 2^126510103 is an apocalyptic number.

126510103 is a deficient number, since it is larger than the sum of its proper divisors (1).

126510103 is an equidigital number, since it uses as much as digits as its factorization.

126510103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 126510103 is about 11247.6710033678. The cubic root of 126510103 is about 502.0054165222.

Adding to 126510103 its reverse (301015621), we get a palindrome (427525724).

The spelling of 126510103 in words is "one hundred twenty-six million, five hundred ten thousand, one hundred three".