2138953316 has 12 divisors (see below), whose sum is σ = 3764806332. Its totient is φ = 1063294368.

The previous prime is 2138953301. The next prime is 2138953321. The reversal of 2138953316 is 6133598312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1860196900 + 278756416 = 43130^2 + 16696^2 .

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, 1544795 + ... + 1546178.

It is an arithmetic number, because the mean of its divisors is an integer number (313733861).

Almost surely, 2^2138953316 is an apocalyptic number.

It is an amenable number.

2138953316 is a deficient number, since it is larger than the sum of its proper divisors (1625853016).

2138953316 is a wasteful number, since it uses less digits than its factorization.

2138953316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3091150 (or 3091148 counting only the distinct ones).

The product of its digits is 116640, while the sum is 41.

The square root of 2138953316 is about 46248.8196173697. The cubic root of 2138953316 is about 1288.4486119422.

The spelling of 2138953316 in words is "two billion, one hundred thirty-eight million, nine hundred fifty-three thousand, three hundred sixteen".