1204145672 has 32 divisors (see below), whose sum is σ = 2398440000. Its totient is φ = 565144128.

The previous prime is 1204145671. The next prime is 1204145689. The reversal of 1204145672 is 2765414021.

It is not an unprimeable number, because it can be changed into a prime (1204145671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19772 + ... + 52907.

It is an arithmetic number, because the mean of its divisors is an integer number (74951250).

Almost surely, 2^1204145672 is an apocalyptic number.

It is an amenable number.

1204145672 is a deficient number, since it is larger than the sum of its proper divisors (1194294328).

1204145672 is a wasteful number, since it uses less digits than its factorization.

1204145672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72813 (or 72809 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 1204145672 is about 34700.8021809295. The cubic root of 1204145672 is about 1063.8808942938.

Adding to 1204145672 its reverse (2765414021), we get a palindrome (3969559693).

The spelling of 1204145672 in words is "one billion, two hundred four million, one hundred forty-five thousand, six hundred seventy-two".