145203404 has 12 divisors (see below), whose sum is σ = 255217200. Its totient is φ = 72284208.

The previous prime is 145203391. The next prime is 145203419. The reversal of 145203404 is 404302541.

It is a self number, because there is not a number n which added to its sum of digits gives 145203404.

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, 78344 + ... + 80175.

It is an arithmetic number, because the mean of its divisors is an integer number (21268100).

Almost surely, 2^145203404 is an apocalyptic number.

It is an amenable number.

145203404 is a deficient number, since it is larger than the sum of its proper divisors (110013796).

145203404 is a wasteful number, since it uses less digits than its factorization.

145203404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158752 (or 158750 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 145203404 is about 12050.0375103151. The cubic root of 145203404 is about 525.6043278249.

Adding to 145203404 its reverse (404302541), we get a palindrome (549505945).

The spelling of 145203404 in words is "one hundred forty-five million, two hundred three thousand, four hundred four".