1142879153285 has 4 divisors (see below), whose sum is σ = 1371454983948. Its totient is φ = 914303322624.

The previous prime is 1142879153267. The next prime is 1142879153327. The reversal of 1142879153285 is 5823519782411.

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 556954734436 + 585924418849 = 746294^2 + 765457^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1142879153285 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 1142879153285.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114287915324 + ... + 114287915333.

It is an arithmetic number, because the mean of its divisors is an integer number (342863745987).

Almost surely, 2^{1142879153285} is an apocalyptic number.

It is an amenable number.

1142879153285 is a deficient number, since it is larger than the sum of its proper divisors (228575830663).

1142879153285 is an equidigital number, since it uses as much as digits as its factorization.

1142879153285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228575830662.

The product of its digits is 4838400, while the sum is 56.

The spelling of 1142879153285 in words is "one trillion, one hundred forty-two billion, eight hundred seventy-nine million, one hundred fifty-three thousand, two hundred eighty-five".