8258138 has 16 divisors (see below), whose sum is σ = 14503104. Its totient is φ = 3452640.

The previous prime is 8258137. The next prime is 8258143. The reversal of 8258138 is 8318528.

It is a junction number, because it is equal to n+sod(n) for n = 8258098 and 8258107.

It is not an unprimeable number, because it can be changed into a prime (8258137) 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 in 7 ways as a sum of consecutive naturals, for example, 6620 + ... + 7767.

It is an arithmetic number, because the mean of its divisors is an integer number (906444).

Almost surely, 2^8258138 is an apocalyptic number.

8258138 is a deficient number, since it is larger than the sum of its proper divisors (6244966).

8258138 is a wasteful number, since it uses less digits than its factorization.

8258138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14437.

The product of its digits is 15360, while the sum is 35.

The square root of 8258138 is about 2873.6976180524. The cubic root of 8258138 is about 202.1284188160.

The spelling of 8258138 in words is "eight million, two hundred fifty-eight thousand, one hundred thirty-eight".