538539172 has 6 divisors (see below), whose sum is σ = 942443558. Its totient is φ = 269269584.

The previous prime is 538539167. The next prime is 538539179. The reversal of 538539172 is 271935835.

It can be written as a sum of positive squares in only one way, i.e., 538518436 + 20736 = 23206^2 + 144^2 .

It is not an unprimeable number, because it can be changed into a prime (538539179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67317393 + ... + 67317400.

Almost surely, 2^538539172 is an apocalyptic number.

It is an amenable number.

538539172 is a deficient number, since it is larger than the sum of its proper divisors (403904386).

538539172 is a wasteful number, since it uses less digits than its factorization.

538539172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134634797 (or 134634795 counting only the distinct ones).

The product of its digits is 226800, while the sum is 43.

The square root of 538539172 is about 23206.4467767041. The cubic root of 538539172 is about 813.5903075097.

The spelling of 538539172 in words is "five hundred thirty-eight million, five hundred thirty-nine thousand, one hundred seventy-two".