203145004 has 12 divisors (see below), whose sum is σ = 355609800. Its totient is φ = 101542208.

The previous prime is 203144999. The next prime is 203145013. The reversal of 203145004 is 400541302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14967 + ... + 25105.

It is an arithmetic number, because the mean of its divisors is an integer number (29634150).

Almost surely, 2^203145004 is an apocalyptic number.

It is an amenable number.

203145004 is a deficient number, since it is larger than the sum of its proper divisors (152464796).

203145004 is a wasteful number, since it uses less digits than its factorization.

203145004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15152 (or 15150 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 203145004 is about 14252.8945832066. The cubic root of 203145004 is about 587.8529681579.

Adding to 203145004 its reverse (400541302), we get a palindrome (603686306).

The spelling of 203145004 in words is "two hundred three million, one hundred forty-five thousand, four".