2138155032 has 64 divisors (see below), whose sum is σ = 5825998080. Its totient is φ = 649959552.

The previous prime is 2138154979. The next prime is 2138155037. The reversal of 2138155032 is 2305518312.

2138155032 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138155037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15388 + ... + 67179.

It is an arithmetic number, because the mean of its divisors is an integer number (91031220).

Almost surely, 2^2138155032 is an apocalyptic number.

It is an amenable number.

2138155032 is an abundant number, since it is smaller than the sum of its proper divisors (3687843048).

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

2138155032 is a wasteful number, since it uses less digits than its factorization.

2138155032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82672 (or 82668 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 2138155032 is about 46240.1884944255. The cubic root of 2138155032 is about 1288.2883036446.

The spelling of 2138155032 in words is "two billion, one hundred thirty-eight million, one hundred fifty-five thousand, thirty-two".