2540541 has 8 divisors (see below), whose sum is σ = 3398400. Its totient is φ = 1688192.

The previous prime is 2540539. The next prime is 2540563. The reversal of 2540541 is 1450452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2540541 - 2¹ = 2540539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141 + ... + 2258.

It is an arithmetic number, because the mean of its divisors is an integer number (424800).

2^2540541 is an apocalyptic number.

It is an amenable number.

2540541 is a deficient number, since it is larger than the sum of its proper divisors (857859).

2540541 is a wasteful number, since it uses less digits than its factorization.

2540541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 2540541 is about 1593.9074628096. The cubic root of 2540541 is about 136.4505852343.

Adding to 2540541 its reverse (1450452), we get a palindrome (3990993).

It can be divided in two parts, 2540 and 541, that added together give a triangular number (3081 = T₇₈).

The spelling of 2540541 in words is "two million, five hundred forty thousand, five hundred forty-one".