8425138 has 12 divisors (see below), whose sum is σ = 13091130. Its totient is φ = 4066496.

The previous prime is 8425133. The next prime is 8425169. The reversal of 8425138 is 8315248.

It can be written as a sum of positive squares in 3 ways, for example, as 7252249 + 1172889 = 2693^2 + 1083^2 .

It is not an unprimeable number, because it can be changed into a prime (8425133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 823 + ... + 4186.

Almost surely, 2^8425138 is an apocalyptic number.

8425138 is a deficient number, since it is larger than the sum of its proper divisors (4665992).

8425138 is a wasteful number, since it uses less digits than its factorization.

8425138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5069 (or 5040 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The square root of 8425138 is about 2902.6088265559. The cubic root of 8425138 is about 203.4818485582.

The spelling of 8425138 in words is "eight million, four hundred twenty-five thousand, one hundred thirty-eight".