540151 has 4 divisors (see below), whose sum is σ = 568600. Its totient is φ = 511704.

The previous prime is 540149. The next prime is 540157. The reversal of 540151 is 151045.

It is a happy number.

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 540151 - 2¹ = 540149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14196 + ... + 14233.

It is an arithmetic number, because the mean of its divisors is an integer number (142150).

2⁵⁴⁰¹⁵¹ is an apocalyptic number.

540151 is a deficient number, since it is larger than the sum of its proper divisors (28449).

540151 is a wasteful number, since it uses less digits than its factorization.

540151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28448.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 540151 is about 734.9496581399. The cubic root of 540151 is about 81.4401181064.

Adding to 540151 its reverse (151045), we get a palindrome (691196).

The spelling of 540151 in words is "five hundred forty thousand, one hundred fifty-one".