142399303 has 4 divisors (see below), whose sum is σ = 142787680. Its totient is φ = 142010928.

The previous prime is 142399291. The next prime is 142399339. The reversal of 142399303 is 303993241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142399303 is a prime.

It is a super-2 number, since 2×142399303² = 40555122989771618, 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 (142399343) 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, 193638 + ... + 194371.

It is an arithmetic number, because the mean of its divisors is an integer number (35696920).

Almost surely, 2^142399303 is an apocalyptic number.

142399303 is a deficient number, since it is larger than the sum of its proper divisors (388377).

142399303 is an equidigital number, since it uses as much as digits as its factorization.

142399303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388376.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 142399303 is about 11933.1179077389. The cubic root of 142399303 is about 522.1989022449.

The spelling of 142399303 in words is "one hundred forty-two million, three hundred ninety-nine thousand, three hundred three".