2079157 has 4 divisors (see below), whose sum is σ = 2082060. Its totient is φ = 2076256.

The previous prime is 2079149. The next prime is 2079163. The reversal of 2079157 is 7519702.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7519702 = 2 ⋅3759851.

It can be written as a sum of positive squares in 2 ways, for example, as 1503076 + 576081 = 1226^2 + 759^2 .

It is a cyclic number.

It is not a de Polignac number, because 2079157 - 2³ = 2079149 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

2079157 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2079127) 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, 483 + ... + 2095.

It is an arithmetic number, because the mean of its divisors is an integer number (520515).

2^2079157 is an apocalyptic number.

It is an amenable number.

2079157 is a deficient number, since it is larger than the sum of its proper divisors (2903).

2079157 is a wasteful number, since it uses less digits than its factorization.

2079157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2902.

The product of its (nonzero) digits is 4410, while the sum is 31.

The square root of 2079157 is about 1441.9282229015. The cubic root of 2079157 is about 127.6328386113.

The spelling of 2079157 in words is "two million, seventy-nine thousand, one hundred fifty-seven".