126142903 has 2 divisors, whose sum is σ = 126142904. Its totient is φ = 126142902.

The previous prime is 126142889. The next prime is 126142927. The reversal of 126142903 is 309241621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126142903 - 2⁵ = 126142871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126142943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63071451 + 63071452.

It is an arithmetic number, because the mean of its divisors is an integer number (63071452).

Almost surely, 2^126142903 is an apocalyptic number.

126142903 is a deficient number, since it is larger than the sum of its proper divisors (1).

126142903 is an equidigital number, since it uses as much as digits as its factorization.

126142903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 126142903 is about 11231.3357620543. The cubic root of 126142903 is about 501.5192497516.

The spelling of 126142903 in words is "one hundred twenty-six million, one hundred forty-two thousand, nine hundred three".