5139656 has 8 divisors (see below), whose sum is σ = 9636870. Its totient is φ = 2569824.

The previous prime is 5139653. The next prime is 5139679. The reversal of 5139656 is 6569315.

It can be written as a sum of positive squares in only one way, i.e., 5134756 + 4900 = 2266^2 + 70^2 .

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 (5139653) 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, 321221 + ... + 321236.

Almost surely, 2^5139656 is an apocalyptic number.

It is an amenable number.

5139656 is a deficient number, since it is larger than the sum of its proper divisors (4497214).

5139656 is a wasteful number, since it uses less digits than its factorization.

5139656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642463 (or 642459 counting only the distinct ones).

The product of its digits is 24300, while the sum is 35.

The square root of 5139656 is about 2267.0809425338. The cubic root of 5139656 is about 172.5750538062.

The spelling of 5139656 in words is "five million, one hundred thirty-nine thousand, six hundred fifty-six".