142392403 has 4 divisors (see below), whose sum is σ = 149886760. Its totient is φ = 134898048.

The previous prime is 142392389. The next prime is 142392421. The reversal of 142392403 is 304293241.

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-142392403 is a prime.

It is a super-2 number, since 2×142392403² = 40551192864228818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142392443) 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, 3747150 + ... + 3747187.

It is an arithmetic number, because the mean of its divisors is an integer number (37471690).

Almost surely, 2^142392403 is an apocalyptic number.

142392403 is a deficient number, since it is larger than the sum of its proper divisors (7494357).

142392403 is an equidigital number, since it uses as much as digits as its factorization.

142392403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7494356.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 142392403 is about 11932.8287928722. The cubic root of 142392403 is about 522.1904676750.

The spelling of 142392403 in words is "one hundred forty-two million, three hundred ninety-two thousand, four hundred three".