2609121 has 4 divisors (see below), whose sum is σ = 3478832. Its totient is φ = 1739412.

The previous prime is 2609107. The next prime is 2609147. The reversal of 2609121 is 1219062.

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 2609121 - 2⁷ = 2608993 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2609171) 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, 434851 + ... + 434856.

It is an arithmetic number, because the mean of its divisors is an integer number (869708).

2^2609121 is an apocalyptic number.

It is an amenable number.

2609121 is a deficient number, since it is larger than the sum of its proper divisors (869711).

2609121 is an equidigital number, since it uses as much as digits as its factorization.

2609121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869710.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 2609121 is about 1615.2773755612. The cubic root of 2609121 is about 137.6674939580.

The spelling of 2609121 in words is "two million, six hundred nine thousand, one hundred twenty-one".