1025204144 has 20 divisors (see below), whose sum is σ = 1995247296. Its totient is φ = 510301632.

The previous prime is 1025204137. The next prime is 1025204153. The reversal of 1025204144 is 4414025201.

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, 140099 + ... + 147234.

Almost surely, 2^1025204144 is an apocalyptic number.

It is an amenable number.

1025204144 is a deficient number, since it is larger than the sum of its proper divisors (970043152).

1025204144 is a wasteful number, since it uses less digits than its factorization.

1025204144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287564 (or 287558 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 1025204144 is about 32018.8092220807. The cubic root of 1025204144 is about 1008.3317701469.

Adding to 1025204144 its reverse (4414025201), we get a palindrome (5439229345).

The spelling of 1025204144 in words is "one billion, twenty-five million, two hundred four thousand, one hundred forty-four".