1142512404 has 144 divisors (see below), whose sum is σ = 3154189248. Its totient is φ = 318080000.

The previous prime is 1142512367. The next prime is 1142512417. The reversal of 1142512404 is 4042152411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11311954 + ... + 11312054.

It is an arithmetic number, because the mean of its divisors is an integer number (21904092).

Almost surely, 2^1142512404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142512404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1577094624).

1142512404 is an abundant number, since it is smaller than the sum of its proper divisors (2011676844).

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

1142512404 is a wasteful number, since it uses less digits than its factorization.

1142512404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 1142512404 is about 33801.0710481192. The cubic root of 1142512404 is about 1045.4107811717.

Adding to 1142512404 its reverse (4042152411), we get a palindrome (5184664815).

The spelling of 1142512404 in words is "one billion, one hundred forty-two million, five hundred twelve thousand, four hundred four".