142403903 has 2 divisors, whose sum is σ = 142403904. Its totient is φ = 142403902.

The previous prime is 142403897. The next prime is 142403909. The reversal of 142403903 is 309304241.

It is a balanced prime because it is at equal distance from previous prime (142403897) and next prime (142403909).

It is an emirp because it is prime and its reverse (309304241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142403903 - 2⁴ = 142403887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142403909) 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, 71201951 + 71201952.

It is an arithmetic number, because the mean of its divisors is an integer number (71201952).

Almost surely, 2^142403903 is an apocalyptic number.

142403903 is a deficient number, since it is larger than the sum of its proper divisors (1).

142403903 is an equidigital number, since it uses as much as digits as its factorization.

142403903 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 26.

The square root of 142403903 is about 11933.3106470920. The cubic root of 142403903 is about 522.2045251401.

The spelling of 142403903 in words is "one hundred forty-two million, four hundred three thousand, nine hundred three".