540951 has 4 divisors (see below), whose sum is σ = 721272. Its totient is φ = 360632.

The previous prime is 540907. The next prime is 540961. The reversal of 540951 is 159045.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 540951 - 2⁷ = 540823 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90156 + ... + 90161.

It is an arithmetic number, because the mean of its divisors is an integer number (180318).

2⁵⁴⁰⁹⁵¹ is an apocalyptic number.

540951 is a deficient number, since it is larger than the sum of its proper divisors (180321).

540951 is a wasteful number, since it uses less digits than its factorization.

540951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180320.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 540951 is about 735.4937117338. The cubic root of 540951 is about 81.4803043729.

Adding to 540951 its reverse (159045), we get a palindrome (699996).

It can be divided in two parts, 5409 and 51, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 540951 in words is "five hundred forty thousand, nine hundred fifty-one".