540156 has 12 divisors (see below), whose sum is σ = 1260392. Its totient is φ = 180048.

The previous prime is 540149. The next prime is 540157. The reversal of 540156 is 651045.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a zygodrome in base 11.

It is a congruent number.

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

540156 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22495 + ... + 22518.

2⁵⁴⁰¹⁵⁶ is an apocalyptic number.

It is an amenable number.

540156 is an abundant number, since it is smaller than the sum of its proper divisors (720236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

540156 is a wasteful number, since it uses less digits than its factorization.

540156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45020 (or 45018 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 540156 is about 734.9530597256. The cubic root of 540156 is about 81.4403693937.

Subtracting 540156 from its reverse (651045), we obtain a square (110889 = 333²).

It can be divided in two parts, 540 and 156, that added together give a palindrome (696).

The spelling of 540156 in words is "five hundred forty thousand, one hundred fifty-six".