1020144133 has 4 divisors (see below), whose sum is σ = 1024522668. Its totient is φ = 1015765600.

The previous prime is 1020144127. The next prime is 1020144149. The reversal of 1020144133 is 3314410201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 694955044 + 325189089 = 26362^2 + 18033^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020144133 - 2¹⁷ = 1020013061 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 1020144133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020144113) 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, 2188918 + ... + 2189383.

It is an arithmetic number, because the mean of its divisors is an integer number (256130667).

Almost surely, 2^1020144133 is an apocalyptic number.

It is an amenable number.

1020144133 is a deficient number, since it is larger than the sum of its proper divisors (4378535).

1020144133 is an equidigital number, since it uses as much as digits as its factorization.

1020144133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4378534.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1020144133 is about 31939.6952552776. The cubic root of 1020144133 is about 1006.6701215593.

Adding to 1020144133 its reverse (3314410201), we get a palindrome (4334554334).

The spelling of 1020144133 in words is "one billion, twenty million, one hundred forty-four thousand, one hundred thirty-three".