575686138 has 4 divisors (see below), whose sum is σ = 863529210. Its totient is φ = 287843068.

The previous prime is 575686121. The next prime is 575686169. The reversal of 575686138 is 831686575.

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., 369677529 + 206008609 = 19227^2 + 14353^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 575686091 and 575686100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143921533 + ... + 143921536.

Almost surely, 2^575686138 is an apocalyptic number.

575686138 is a deficient number, since it is larger than the sum of its proper divisors (287843072).

575686138 is a wasteful number, since it uses less digits than its factorization.

575686138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287843071.

The product of its digits is 1209600, while the sum is 49.

The square root of 575686138 is about 23993.4603173448. The cubic root of 575686138 is about 831.8823769324.

The spelling of 575686138 in words is "five hundred seventy-five million, six hundred eighty-six thousand, one hundred thirty-eight".