2138941241 has 4 divisors (see below), whose sum is σ = 2264761332. Its totient is φ = 2013121152.

The previous prime is 2138941237. The next prime is 2138941319. The reversal of 2138941241 is 1421498312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1801153600 + 337787641 = 42440^2 + 18379^2 .

It is a cyclic number.

It is not a de Polignac number, because 2138941241 - 2² = 2138941237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2138941141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62910020 + ... + 62910053.

It is an arithmetic number, because the mean of its divisors is an integer number (566190333).

Almost surely, 2^2138941241 is an apocalyptic number.

It is an amenable number.

2138941241 is a deficient number, since it is larger than the sum of its proper divisors (125820091).

2138941241 is a wasteful number, since it uses less digits than its factorization.

2138941241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125820090.

The product of its digits is 13824, while the sum is 35.

The square root of 2138941241 is about 46248.6890733132. The cubic root of 2138941241 is about 1288.4461873846.

The spelling of 2138941241 in words is "two billion, one hundred thirty-eight million, nine hundred forty-one thousand, two hundred forty-one".