2138741 has 4 divisors (see below), whose sum is σ = 2333184. Its totient is φ = 1944300.

The previous prime is 2138737. The next prime is 2138743. The reversal of 2138741 is 1478312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2138741 - 2² = 2138737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2138741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138743) 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, 97205 + ... + 97226.

It is an arithmetic number, because the mean of its divisors is an integer number (583296).

2^2138741 is an apocalyptic number.

It is an amenable number.

2138741 is a deficient number, since it is larger than the sum of its proper divisors (194443).

2138741 is a wasteful number, since it uses less digits than its factorization.

2138741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194442.

The product of its digits is 1344, while the sum is 26.

The square root of 2138741 is about 1462.4435031823. The cubic root of 2138741 is about 128.8405979360.

The spelling of 2138741 in words is "two million, one hundred thirty-eight thousand, seven hundred forty-one".