142230503 has 4 divisors (see below), whose sum is σ = 143535480. Its totient is φ = 140925528.

The previous prime is 142230493. The next prime is 142230509. The reversal of 142230503 is 305032241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142230503 - 2²⁶ = 75121639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142230509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652325 + ... + 652542.

It is an arithmetic number, because the mean of its divisors is an integer number (35883870).

Almost surely, 2^142230503 is an apocalyptic number.

142230503 is a deficient number, since it is larger than the sum of its proper divisors (1304977).

142230503 is a wasteful number, since it uses less digits than its factorization.

142230503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304976.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 142230503 is about 11926.0430571083. The cubic root of 142230503 is about 521.9924826308.

Adding to 142230503 its reverse (305032241), we get a palindrome (447262744).

The spelling of 142230503 in words is "one hundred forty-two million, two hundred thirty thousand, five hundred three".