7138568 has 8 divisors (see below), whose sum is σ = 13384830. Its totient is φ = 3569280.

The previous prime is 7138561. The next prime is 7138577. The reversal of 7138568 is 8658317.

It can be written as a sum of positive squares in only one way, i.e., 6980164 + 158404 = 2642^2 + 398^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (7138561) 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, 446153 + ... + 446168.

Almost surely, 2^7138568 is an apocalyptic number.

It is an amenable number.

7138568 is a deficient number, since it is larger than the sum of its proper divisors (6246262).

7138568 is a wasteful number, since it uses less digits than its factorization.

7138568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892327 (or 892323 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The square root of 7138568 is about 2671.8098734753. The cubic root of 7138568 is about 192.5471228877.

The spelling of 7138568 in words is "seven million, one hundred thirty-eight thousand, five hundred sixty-eight".