142224403 has 8 divisors (see below), whose sum is σ = 144080640. Its totient is φ = 140374080.

The previous prime is 142224391. The next prime is 142224421. The reversal of 142224403 is 304422241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142224403 - 2⁵ = 142224371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142224503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66318 + ... + 68428.

It is an arithmetic number, because the mean of its divisors is an integer number (18010080).

Almost surely, 2^142224403 is an apocalyptic number.

142224403 is a deficient number, since it is larger than the sum of its proper divisors (1856237).

142224403 is an equidigital number, since it uses as much as digits as its factorization.

142224403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2957.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 142224403 is about 11925.7873115363. The cubic root of 142224403 is about 521.9850200973.

Adding to 142224403 its reverse (304422241), we get a palindrome (446646644).

The spelling of 142224403 in words is "one hundred forty-two million, two hundred twenty-four thousand, four hundred three".