126912503 has 2 divisors, whose sum is σ = 126912504. Its totient is φ = 126912502.

The previous prime is 126912493. The next prime is 126912521. The reversal of 126912503 is 305219621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126912503 - 2¹⁰ = 126911479 is a prime.

It is a super-2 number, since 2×126912503² = 32213566835450018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126912403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63456251 + 63456252.

It is an arithmetic number, because the mean of its divisors is an integer number (63456252).

Almost surely, 2^126912503 is an apocalyptic number.

126912503 is a deficient number, since it is larger than the sum of its proper divisors (1).

126912503 is an equidigital number, since it uses as much as digits as its factorization.

126912503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 126912503 is about 11265.5449490915. The cubic root of 126912503 is about 502.5371083872.

The spelling of 126912503 in words is "one hundred twenty-six million, nine hundred twelve thousand, five hundred three".