1142112133 has 8 divisors (see below), whose sum is σ = 1183695480. Its totient is φ = 1100675520.

The previous prime is 1142112107. The next prime is 1142112151. The reversal of 1142112133 is 3312112411.

It can be written as a sum of positive squares in 4 ways, for example, as 174715524 + 967396609 = 13218^2 + 31103^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1142112133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1142112133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142112193) 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, 20710 + ... + 52087.

It is an arithmetic number, because the mean of its divisors is an integer number (147961935).

Almost surely, 2^1142112133 is an apocalyptic number.

It is an amenable number.

1142112133 is a deficient number, since it is larger than the sum of its proper divisors (41583347).

1142112133 is an equidigital number, since it uses as much as digits as its factorization.

1142112133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73367.

The product of its digits is 144, while the sum is 19.

The square root of 1142112133 is about 33795.1495484189. The cubic root of 1142112133 is about 1045.2886828635.

Adding to 1142112133 its reverse (3312112411), we get a palindrome (4454224544).

The spelling of 1142112133 in words is "one billion, one hundred forty-two million, one hundred twelve thousand, one hundred thirty-three".