540115212 has 72 divisors (see below), whose sum is σ = 1559663616. Its totient is φ = 142444224.

The previous prime is 540115171. The next prime is 540115249. The reversal of 540115212 is 212511045.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4828 + ... + 33219.

Almost surely, 2^540115212 is an apocalyptic number.

540115212 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 540115212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (779831808).

540115212 is an abundant number, since it is smaller than the sum of its proper divisors (1019548404).

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

540115212 is a wasteful number, since it uses less digits than its factorization.

540115212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38087 (or 38072 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 540115212 is about 23240.3789125737. The cubic root of 540115212 is about 814.3831944681.

Adding to 540115212 its reverse (212511045), we get a palindrome (752626257).

The spelling of 540115212 in words is "five hundred forty million, one hundred fifteen thousand, two hundred twelve".