8139122 has 8 divisors (see below), whose sum is σ = 12225900. Its totient is φ = 4063824.

The previous prime is 8139119. The next prime is 8139127. The reversal of 8139122 is 2219318.

It can be written as a sum of positive squares in 2 ways, for example, as 6974881 + 1164241 = 2641^2 + 1079^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 8139091 and 8139100.

It is not an unprimeable number, because it can be changed into a prime (8139127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 797 + ... + 4112.

Almost surely, 2^8139122 is an apocalyptic number.

8139122 is a deficient number, since it is larger than the sum of its proper divisors (4086778).

8139122 is a wasteful number, since it uses less digits than its factorization.

8139122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5740.

The product of its digits is 864, while the sum is 26.

The square root of 8139122 is about 2852.9146499676. The cubic root of 8139122 is about 201.1526937227.

The spelling of 8139122 in words is "eight million, one hundred thirty-nine thousand, one hundred twenty-two".