540213122 has 4 divisors (see below), whose sum is σ = 810319686. Its totient is φ = 270106560.

The previous prime is 540213119. The next prime is 540213137. The reversal of 540213122 is 221312045.

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

It can be written as a sum of positive squares in only one way, i.e., 367527241 + 172685881 = 19171^2 + 13141^2 .

It is a junction number, because it is equal to n+sod(n) for n = 540213094 and 540213103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135053279 + ... + 135053282.

Almost surely, 2^540213122 is an apocalyptic number.

540213122 is a deficient number, since it is larger than the sum of its proper divisors (270106564).

540213122 is a wasteful number, since it uses less digits than its factorization.

540213122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270106563.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 540213122 is about 23242.4852801933. The cubic root of 540213122 is about 814.4324009085.

Adding to 540213122 its reverse (221312045), we get a palindrome (761525167).

The spelling of 540213122 in words is "five hundred forty million, two hundred thirteen thousand, one hundred twenty-two".