2138079 has 4 divisors (see below), whose sum is σ = 2850776. Its totient is φ = 1425384.

The previous prime is 2138033. The next prime is 2138093. The reversal of 2138079 is 9708312.

It is a happy number.

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

It is not a de Polignac number, because 2138079 - 2¹³ = 2129887 is a prime.

It is a D-number.

It is a Duffinian number.

2138079 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138029) 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, 356344 + ... + 356349.

It is an arithmetic number, because the mean of its divisors is an integer number (712694).

2^2138079 is an apocalyptic number.

2138079 is a deficient number, since it is larger than the sum of its proper divisors (712697).

2138079 is an equidigital number, since it uses as much as digits as its factorization.

2138079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712696.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 2138079 is about 1462.2171521358. The cubic root of 2138079 is about 128.8273033112.

The spelling of 2138079 in words is "two million, one hundred thirty-eight thousand, seventy-nine".