2591121 has 24 divisors (see below), whose sum is σ = 3902080. Its totient is φ = 1520064.

The previous prime is 2591119. The next prime is 2591131. The reversal of 2591121 is 1211952.

It is not a de Polignac number, because 2591121 - 2¹ = 2591119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2591131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32760 + ... + 32838.

2^2591121 is an apocalyptic number.

It is an amenable number.

2591121 is a deficient number, since it is larger than the sum of its proper divisors (1310959).

2591121 is a wasteful number, since it uses less digits than its factorization.

2591121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 124 counting only the distinct ones).

The product of its digits is 180, while the sum is 21.

The square root of 2591121 is about 1609.6959340198. The cubic root of 2591121 is about 137.3501795141.

The spelling of 2591121 in words is "two million, five hundred ninety-one thousand, one hundred twenty-one".