532138511 has 4 divisors (see below), whose sum is σ = 555274992. Its totient is φ = 509002032.

The previous prime is 532138507. The next prime is 532138513. The reversal of 532138511 is 115831235.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 532138511 - 2² = 532138507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (532138513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11568206 + ... + 11568251.

It is an arithmetic number, because the mean of its divisors is an integer number (138818748).

Almost surely, 2^532138511 is an apocalyptic number.

532138511 is a deficient number, since it is larger than the sum of its proper divisors (23136481).

532138511 is a wasteful number, since it uses less digits than its factorization.

532138511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23136480.

The product of its digits is 3600, while the sum is 29.

The square root of 532138511 is about 23068.1276006528. The cubic root of 532138511 is about 810.3542173772.

Adding to 532138511 its reverse (115831235), we get a palindrome (647969746).

The spelling of 532138511 in words is "five hundred thirty-two million, one hundred thirty-eight thousand, five hundred eleven".