2123156148 has 48 divisors (see below), whose sum is σ = 5164561920. Its totient is φ = 678096000.

The previous prime is 2123156111. The next prime is 2123156183. The reversal of 2123156148 is 8416513212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9318 + ... + 65826.

It is an arithmetic number, because the mean of its divisors is an integer number (107595040).

Almost surely, 2^2123156148 is an apocalyptic number.

It is an amenable number.

2123156148 is an abundant number, since it is smaller than the sum of its proper divisors (3041405772).

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

2123156148 is a wasteful number, since it uses less digits than its factorization.

2123156148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56648 (or 56646 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 2123156148 is about 46077.7185633143. The cubic root of 2123156148 is about 1285.2688396718.

The spelling of 2123156148 in words is "two billion, one hundred twenty-three million, one hundred fifty-six thousand, one hundred forty-eight".