2138061 has 4 divisors (see below), whose sum is σ = 2850752. Its totient is φ = 1425372.

The previous prime is 2138033. The next prime is 2138093. The reversal of 2138061 is 1608312.

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 not a de Polignac number, because 2138061 - 2⁵ = 2138029 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138861) 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, 356341 + ... + 356346.

It is an arithmetic number, because the mean of its divisors is an integer number (712688).

2^2138061 is an apocalyptic number.

It is an amenable number.

2138061 is a deficient number, since it is larger than the sum of its proper divisors (712691).

2138061 is an equidigital number, since it uses as much as digits as its factorization.

2138061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712690.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 2138061 is about 1462.2109970863. The cubic root of 2138061 is about 128.8269417876.

The spelling of 2138061 in words is "two million, one hundred thirty-eight thousand, sixty-one".