2138541308 has 12 divisors (see below), whose sum is σ = 3813059880. Its totient is φ = 1049095632.

The previous prime is 2138541283. The next prime is 2138541319. The reversal of 2138541308 is 8031458312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5043518 + ... + 5043941.

It is an arithmetic number, because the mean of its divisors is an integer number (317754990).

Almost surely, 2^2138541308 is an apocalyptic number.

It is an amenable number.

2138541308 is a deficient number, since it is larger than the sum of its proper divisors (1674518572).

2138541308 is a wasteful number, since it uses less digits than its factorization.

2138541308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10087516 (or 10087514 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 2138541308 is about 46244.3651486319. The cubic root of 2138541308 is about 1288.3658790747.

The spelling of 2138541308 in words is "two billion, one hundred thirty-eight million, five hundred forty-one thousand, three hundred eight".