538140011 has 4 divisors (see below), whose sum is σ = 538195224. Its totient is φ = 538084800.

The previous prime is 538140007. The next prime is 538140023. The reversal of 538140011 is 110041835.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 538140011 - 2² = 538140007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538140061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8645 + ... + 33926.

It is an arithmetic number, because the mean of its divisors is an integer number (134548806).

Almost surely, 2^538140011 is an apocalyptic number.

538140011 is a deficient number, since it is larger than the sum of its proper divisors (55213).

538140011 is a wasteful number, since it uses less digits than its factorization.

538140011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55212.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 538140011 is about 23197.8449645651. The cubic root of 538140011 is about 813.3892489142.

Adding to 538140011 its reverse (110041835), we get a palindrome (648181846).

The spelling of 538140011 in words is "five hundred thirty-eight million, one hundred forty thousand, eleven".