203142485 has 24 divisors (see below), whose sum is σ = 305388216. Its totient is φ = 128580480.

The previous prime is 203142479. The next prime is 203142491. The reversal of 203142485 is 584241302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (203142479) and next prime (203142491).

It can be written as a sum of positive squares in 4 ways, for example, as 3598609 + 199543876 = 1897^2 + 14126^2 .

It is not a de Polignac number, because 203142485 - 2¹⁰ = 203141461 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28706 + ... + 35075.

It is an arithmetic number, because the mean of its divisors is an integer number (12724509).

Almost surely, 2^203142485 is an apocalyptic number.

It is an amenable number.

203142485 is a deficient number, since it is larger than the sum of its proper divisors (102245731).

203142485 is a wasteful number, since it uses less digits than its factorization.

203142485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63813 (or 63806 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 203142485 is about 14252.8062149178. The cubic root of 203142485 is about 587.8505383537.

Adding to 203142485 its reverse (584241302), we get a palindrome (787383787).

The spelling of 203142485 in words is "two hundred three million, one hundred forty-two thousand, four hundred eighty-five".