2667121 has 4 divisors (see below), whose sum is σ = 2691700. Its totient is φ = 2642544.

The previous prime is 2667097. The next prime is 2667131. The reversal of 2667121 is 1217662.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1217662 = 2 ⋅608831.

It can be written as a sum of positive squares in 2 ways, for example, as 1079521 + 1587600 = 1039^2 + 1260^2 .

It is a cyclic number.

It is not a de Polignac number, because 2667121 - 2¹⁵ = 2634353 is a prime.

It is a super-2 number, since 2×2667121² = 14227068857282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2667131) 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, 12126 + ... + 12343.

It is an arithmetic number, because the mean of its divisors is an integer number (672925).

2^2667121 is an apocalyptic number.

It is an amenable number.

2667121 is a deficient number, since it is larger than the sum of its proper divisors (24579).

2667121 is a wasteful number, since it uses less digits than its factorization.

2667121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24578.

The product of its digits is 1008, while the sum is 25.

The square root of 2667121 is about 1633.1322665357. The cubic root of 2667121 is about 138.6801298514.

The spelling of 2667121 in words is "two million, six hundred sixty-seven thousand, one hundred twenty-one".