142940503 has 2 divisors, whose sum is σ = 142940504. Its totient is φ = 142940502.

The previous prime is 142940491. The next prime is 142940531. The reversal of 142940503 is 305049241.

It is an a-pointer prime, because the next prime (142940531) can be obtained adding 142940503 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142940503 - 2²⁵ = 109386071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142940543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71470251 + 71470252.

It is an arithmetic number, because the mean of its divisors is an integer number (71470252).

Almost surely, 2^142940503 is an apocalyptic number.

142940503 is a deficient number, since it is larger than the sum of its proper divisors (1).

142940503 is an equidigital number, since it uses as much as digits as its factorization.

142940503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 142940503 is about 11955.7727897447. The cubic root of 142940503 is about 522.8596188859.

Adding to 142940503 its reverse (305049241), we get a palindrome (447989744).

The spelling of 142940503 in words is "one hundred forty-two million, nine hundred forty thousand, five hundred three".