1143420133 has 8 divisors (see below), whose sum is σ = 1203989600. Its totient is φ = 1082889648.

The previous prime is 1143420127. The next prime is 1143420143. The reversal of 1143420133 is 3310243411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1143420133 - 2²¹ = 1141322981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143420143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65398 + ... + 81016.

It is an arithmetic number, because the mean of its divisors is an integer number (150498700).

Almost surely, 2^1143420133 is an apocalyptic number.

It is an amenable number.

1143420133 is a deficient number, since it is larger than the sum of its proper divisors (60569467).

1143420133 is a wasteful number, since it uses less digits than its factorization.

1143420133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19491.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1143420133 is about 33814.4959004271. The cubic root of 1143420133 is about 1045.6875683868.

Adding to 1143420133 its reverse (3310243411), we get a palindrome (4453663544).

The spelling of 1143420133 in words is "one billion, one hundred forty-three million, four hundred twenty thousand, one hundred thirty-three".