142505303 has 4 divisors (see below), whose sum is σ = 143627520. Its totient is φ = 141383088.

The previous prime is 142505267. The next prime is 142505327. The reversal of 142505303 is 303505241.

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 142505303 - 2¹⁶ = 142439767 is a prime.

It is a super-2 number, since 2×142505303² = 40615522766243618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142505353) 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 in 3 ways as a sum of consecutive naturals, for example, 560918 + ... + 561171.

It is an arithmetic number, because the mean of its divisors is an integer number (35906880).

Almost surely, 2^142505303 is an apocalyptic number.

142505303 is a deficient number, since it is larger than the sum of its proper divisors (1122217).

142505303 is a wasteful number, since it uses less digits than its factorization.

142505303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122216.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 142505303 is about 11937.5585024744. The cubic root of 142505303 is about 522.3284425667.

The spelling of 142505303 in words is "one hundred forty-two million, five hundred five thousand, three hundred three".