540601 has 4 divisors (see below), whose sum is σ = 542500.
Its totient is φ = 538704.
The previous prime is 540599. The next prime is 540611. The reversal of 540601 is 106045.
Adding to 540601 its reverse (106045), we get a palindrome (646646).
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 291600 + 249001 = 540^2 + 499^2
It is a cyclic number.
It is not a de Polignac number, because 540601 - 21 = 540599 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (540611) 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, 426 + ... + 1123.
It is an arithmetic number, because the mean of its divisors is an integer number (135625).
2540601 is an apocalyptic number.
540601 is the 425-th hex number.
It is an amenable number.
540601 is a deficient number, since it is larger than the sum of its proper divisors (1899).
540601 is a wasteful number, since it uses less digits than its factorization.
540601 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1898.
The product of its (nonzero) digits is 120, while the sum is 16.
The square root of 540601 is about 735.2557378219.
The cubic root of 540601 is about 81.4627277598.
The spelling of 540601 in words is "five hundred forty thousand, six hundred one".