2579121 has 20 divisors (see below), whose sum is σ = 4081572. Its totient is φ = 1617408.

The previous prime is 2579119. The next prime is 2579167. The reversal of 2579121 is 1219752.

It can be written as a sum of positive squares in 2 ways, for example, as 876096 + 1703025 = 936^2 + 1305^2 .

It is not a de Polignac number, because 2579121 - 2¹ = 2579119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2579111) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 441 + ... + 2313.

2^2579121 is an apocalyptic number.

It is an amenable number.

2579121 is a deficient number, since it is larger than the sum of its proper divisors (1502451).

2579121 is a wasteful number, since it uses less digits than its factorization.

2579121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902 (or 1893 counting only the distinct ones).

The product of its digits is 1260, while the sum is 27.

The square root of 2579121 is about 1605.9641963630. The cubic root of 2579121 is about 137.1378192904.

The spelling of 2579121 in words is "two million, five hundred seventy-nine thousand, one hundred twenty-one".