203142355 has 16 divisors (see below), whose sum is σ = 264537504. Its totient is φ = 148861440.

The previous prime is 203142337. The next prime is 203142397. The reversal of 203142355 is 553241302.

It is not a de Polignac number, because 203142355 - 2⁷ = 203142227 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3414 + ... + 20443.

It is an arithmetic number, because the mean of its divisors is an integer number (16533594).

Almost surely, 2^203142355 is an apocalyptic number.

203142355 is a deficient number, since it is larger than the sum of its proper divisors (61395149).

203142355 is a wasteful number, since it uses less digits than its factorization.

203142355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24006.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 203142355 is about 14252.8016544117. The cubic root of 203142355 is about 587.8504129564.

Adding to 203142355 its reverse (553241302), we get a palindrome (756383657).

The spelling of 203142355 in words is "two hundred three million, one hundred forty-two thousand, three hundred fifty-five".