142205003 has 8 divisors (see below), whose sum is σ = 143423280. Its totient is φ = 140991840.

The previous prime is 142204961. The next prime is 142205027. The reversal of 142205003 is 300502241.

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 142205003 - 2⁸ = 142204747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142205053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70868 + ... + 72846.

It is an arithmetic number, because the mean of its divisors is an integer number (17927910).

Almost surely, 2^142205003 is an apocalyptic number.

142205003 is a deficient number, since it is larger than the sum of its proper divisors (1218277).

142205003 is a wasteful number, since it uses less digits than its factorization.

142205003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2557.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 142205003 is about 11924.9739203069. The cubic root of 142205003 is about 521.9612853757.

Adding to 142205003 its reverse (300502241), we get a palindrome (442707244).

The spelling of 142205003 in words is "one hundred forty-two million, two hundred five thousand, three".