2543001 has 8 divisors (see below), whose sum is σ = 3399264. Its totient is φ = 1691040.

The previous prime is 2542999. The next prime is 2543027. The reversal of 2543001 is 1003452.

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

It is not a de Polignac number, because 2543001 - 2¹ = 2542999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2543201) 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, 750 + ... + 2376.

It is an arithmetic number, because the mean of its divisors is an integer number (424908).

2^2543001 is an apocalyptic number.

It is an amenable number.

2543001 is a deficient number, since it is larger than the sum of its proper divisors (856263).

2543001 is a wasteful number, since it uses less digits than its factorization.

2543001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2543001 is about 1594.6789645568. The cubic root of 2543001 is about 136.4946126226.

Adding to 2543001 its reverse (1003452), we get a palindrome (3546453).

The spelling of 2543001 in words is "two million, five hundred forty-three thousand, one".