2142825811 has 12 divisors (see below), whose sum is σ = 2497821168. Its totient is φ = 1832915952.

The previous prime is 2142825799. The next prime is 2142825829. The reversal of 2142825811 is 1185282412.

It is not a de Polignac number, because 2142825811 - 2⁷ = 2142825683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2142825211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21036 + ... + 68761.

It is an arithmetic number, because the mean of its divisors is an integer number (208151764).

Almost surely, 2^2142825811 is an apocalyptic number.

2142825811 is a deficient number, since it is larger than the sum of its proper divisors (354995357).

2142825811 is an equidigital number, since it uses as much as digits as its factorization.

2142825811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90298 (or 90291 counting only the distinct ones).

The product of its digits is 10240, while the sum is 34.

The square root of 2142825811 is about 46290.6665646543. Note that the first 3 decimals coincide. The cubic root of 2142825811 is about 1289.2257058425.

The spelling of 2142825811 in words is "two billion, one hundred forty-two million, eight hundred twenty-five thousand, eight hundred eleven".