2129087156 has 24 divisors (see below), whose sum is σ = 4259181696. Its totient is φ = 912250080.

The previous prime is 2129087143. The next prime is 2129087159. The reversal of 2129087156 is 6517809212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129087159) by changing a digit.

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, 184550 + ... + 195746.

It is an arithmetic number, because the mean of its divisors is an integer number (177465904).

Almost surely, 2^2129087156 is an apocalyptic number.

It is an amenable number.

2129087156 is an abundant number, since it is smaller than the sum of its proper divisors (2130094540).

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

2129087156 is a wasteful number, since it uses less digits than its factorization.

2129087156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17999 (or 17997 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 2129087156 is about 46142.0324216435. The cubic root of 2129087156 is about 1286.4645206992.

The spelling of 2129087156 in words is "two billion, one hundred twenty-nine million, eighty-seven thousand, one hundred fifty-six".