1143401132 has 12 divisors (see below), whose sum is σ = 2047486056. Its totient is φ = 558405120.

The previous prime is 1143401131. The next prime is 1143401167. The reversal of 1143401132 is 2311043411.

It is a super-2 number, since 2×1143401132² = 2614732297317762848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1143401131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3323669 + ... + 3324012.

It is an arithmetic number, because the mean of its divisors is an integer number (170623838).

Almost surely, 2^1143401132 is an apocalyptic number.

It is an amenable number.

1143401132 is a deficient number, since it is larger than the sum of its proper divisors (904084924).

1143401132 is a wasteful number, since it uses less digits than its factorization.

1143401132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6647728 (or 6647726 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1143401132 is about 33814.2149398740. The cubic root of 1143401132 is about 1045.6817760512.

Adding to 1143401132 its reverse (2311043411), we get a palindrome (3454444543).

The spelling of 1143401132 in words is "one billion, one hundred forty-three million, four hundred one thousand, one hundred thirty-two".