1143512 has 8 divisors (see below), whose sum is σ = 2144100. Its totient is φ = 571752.

The previous prime is 1143487. The next prime is 1143529. The reversal of 1143512 is 2153411.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71462 + ... + 71477.

2^1143512 is an apocalyptic number.

It is an amenable number.

1143512 is a deficient number, since it is larger than the sum of its proper divisors (1000588).

1143512 is a wasteful number, since it uses less digits than its factorization.

1143512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142945 (or 142941 counting only the distinct ones).

The product of its digits is 120, while the sum is 17.

The square root of 1143512 is about 1069.3512051707. The cubic root of 1143512 is about 104.5715572560.

Adding to 1143512 its reverse (2153411), we get a palindrome (3296923).

The spelling of 1143512 in words is "one million, one hundred forty-three thousand, five hundred twelve".