2142155154 has 16 divisors (see below), whose sum is σ = 4296248640. Its totient is φ = 712062000.

The previous prime is 2142155137. The next prime is 2142155173. The reversal of 2142155154 is 4515512412.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 495097 + ... + 499404.

It is an arithmetic number, because the mean of its divisors is an integer number (268515540).

Almost surely, 2^2142155154 is an apocalyptic number.

2142155154 is an abundant number, since it is smaller than the sum of its proper divisors (2154093486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2142155154 is a wasteful number, since it uses less digits than its factorization.

2142155154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994865.

The product of its digits is 8000, while the sum is 30.

The square root of 2142155154 is about 46283.4220212810. The cubic root of 2142155154 is about 1289.0911921148.

Adding to 2142155154 its reverse (4515512412), we get a palindrome (6657667566).

The spelling of 2142155154 in words is "two billion, one hundred forty-two million, one hundred fifty-five thousand, one hundred fifty-four".