1142245133 has 8 divisors (see below), whose sum is σ = 1163450400. Its totient is φ = 1121101488.

The previous prime is 1142245123. The next prime is 1142245171. The reversal of 1142245133 is 3315422411.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1142245133 - 2¹⁴ = 1142228749 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 (1142245123) 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, 22883 + ... + 52991.

It is an arithmetic number, because the mean of its divisors is an integer number (145431300).

Almost surely, 2^1142245133 is an apocalyptic number.

It is an amenable number.

1142245133 is a deficient number, since it is larger than the sum of its proper divisors (21205267).

1142245133 is an equidigital number, since it uses as much as digits as its factorization.

1142245133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30811.

The product of its digits is 2880, while the sum is 26.

The square root of 1142245133 is about 33797.1172291366. The cubic root of 1142245133 is about 1045.3292562289.

Adding to 1142245133 its reverse (3315422411), we get a palindrome (4457667544).

The spelling of 1142245133 in words is "one billion, one hundred forty-two million, two hundred forty-five thousand, one hundred thirty-three".