1143513133 has 4 divisors (see below), whose sum is σ = 1306872160. Its totient is φ = 980154108.

The previous prime is 1143513131. The next prime is 1143513139. The reversal of 1143513133 is 3313153411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1143513133 - 2¹ = 1143513131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1143513098 and 1143513107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143513131) 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, 81679503 + ... + 81679516.

It is an arithmetic number, because the mean of its divisors is an integer number (326718040).

Almost surely, 2^1143513133 is an apocalyptic number.

It is an amenable number.

1143513133 is a deficient number, since it is larger than the sum of its proper divisors (163359027).

1143513133 is an equidigital number, since it uses as much as digits as its factorization.

1143513133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163359026.

The product of its digits is 1620, while the sum is 25.

The square root of 1143513133 is about 33815.8710223469. The cubic root of 1143513133 is about 1045.7159179277.

Adding to 1143513133 its reverse (3313153411), we get a palindrome (4456666544).

The spelling of 1143513133 in words is "one billion, one hundred forty-three million, five hundred thirteen thousand, one hundred thirty-three".