2539541 has 4 divisors (see below), whose sum is σ = 2549184. Its totient is φ = 2529900.

The previous prime is 2539531. The next prime is 2539543. The reversal of 2539541 is 1459352.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2539541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2539543) 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, 4415 + ... + 4956.

It is an arithmetic number, because the mean of its divisors is an integer number (637296).

2^2539541 is an apocalyptic number.

It is an amenable number.

2539541 is a deficient number, since it is larger than the sum of its proper divisors (9643).

2539541 is an equidigital number, since it uses as much as digits as its factorization.

2539541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9642.

The product of its digits is 5400, while the sum is 29.

The square root of 2539541 is about 1593.5937374375. The cubic root of 2539541 is about 136.4326797971.

The spelling of 2539541 in words is "two million, five hundred thirty-nine thousand, five hundred forty-one".