42903143 has 2 divisors, whose sum is σ = 42903144. Its totient is φ = 42903142.

The previous prime is 42903139. The next prime is 42903167. The reversal of 42903143 is 34130924.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42903143 - 2² = 42903139 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42903103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21451571 + 21451572.

It is an arithmetic number, because the mean of its divisors is an integer number (21451572).

Almost surely, 2^42903143 is an apocalyptic number.

42903143 is a deficient number, since it is larger than the sum of its proper divisors (1).

42903143 is an equidigital number, since it uses as much as digits as its factorization.

42903143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 42903143 is about 6550.0490837856. The cubic root of 42903143 is about 350.0765628424.

The spelling of 42903143 in words is "forty-two million, nine hundred three thousand, one hundred forty-three".