2138748337 has 8 divisors (see below), whose sum is σ = 2339003232. Its totient is φ = 1939464000.

The previous prime is 2138748329. The next prime is 2138748361. The reversal of 2138748337 is 7338478312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2138748337 - 2³ = 2138748329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2138748307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238023 + ... + 246844.

It is an arithmetic number, because the mean of its divisors is an integer number (292375404).

Almost surely, 2^2138748337 is an apocalyptic number.

It is an amenable number.

2138748337 is a deficient number, since it is larger than the sum of its proper divisors (200254895).

2138748337 is a wasteful number, since it uses less digits than its factorization.

2138748337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485279.

The product of its digits is 677376, while the sum is 46.

The square root of 2138748337 is about 46246.6035185288. The cubic root of 2138748337 is about 1288.4074526607.

The spelling of 2138748337 in words is "two billion, one hundred thirty-eight million, seven hundred forty-eight thousand, three hundred thirty-seven".