1204140144 has 20 divisors (see below), whose sum is σ = 3110695496. Its totient is φ = 401380032.

The previous prime is 1204140139. The next prime is 1204140163. The reversal of 1204140144 is 4410414021.

It is a self number, because there is not a number n which added to its sum of digits gives 1204140144.

It is a congruent number.

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, 12543079 + ... + 12543174.

Almost surely, 2^1204140144 is an apocalyptic number.

It is an amenable number.

1204140144 is an abundant number, since it is smaller than the sum of its proper divisors (1906555352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1204140144 is a wasteful number, since it uses less digits than its factorization.

1204140144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25086264 (or 25086258 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1204140144 is about 34700.7225285008. The cubic root of 1204140144 is about 1063.8792662675.

Adding to 1204140144 its reverse (4410414021), we get a palindrome (5614554165).

The spelling of 1204140144 in words is "one billion, two hundred four million, one hundred forty thousand, one hundred forty-four".