540133238 has 4 divisors (see below), whose sum is σ = 810199860. Its totient is φ = 270066618.

The previous prime is 540133213. The next prime is 540133249. The reversal of 540133238 is 832331045.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 540133238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135033308 + ... + 135033311.

It is an arithmetic number, because the mean of its divisors is an integer number (202549965).

Almost surely, 2^540133238 is an apocalyptic number.

540133238 is a deficient number, since it is larger than the sum of its proper divisors (270066622).

540133238 is a wasteful number, since it uses less digits than its factorization.

540133238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270066621.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 540133238 is about 23240.7667257343. The cubic root of 540133238 is about 814.3922542068.

The spelling of 540133238 in words is "five hundred forty million, one hundred thirty-three thousand, two hundred thirty-eight".