1143315412 has 6 divisors (see below), whose sum is σ = 2000801978. Its totient is φ = 571657704.

The previous prime is 1143315409. The next prime is 1143315419. The reversal of 1143315412 is 2145133411.

It can be written as a sum of positive squares in only one way, i.e., 913611076 + 229704336 = 30226^2 + 15156^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143315419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142914423 + ... + 142914430.

Almost surely, 2^1143315412 is an apocalyptic number.

It is an amenable number.

1143315412 is a deficient number, since it is larger than the sum of its proper divisors (857486566).

1143315412 is a wasteful number, since it uses less digits than its factorization.

1143315412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285828857 (or 285828855 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 1143315412 is about 33812.9474018459. The cubic root of 1143315412 is about 1045.6556440492.

Adding to 1143315412 its reverse (2145133411), we get a palindrome (3288448823).

The spelling of 1143315412 in words is "one billion, one hundred forty-three million, three hundred fifteen thousand, four hundred twelve".