1018006138 has 16 divisors (see below), whose sum is σ = 1656270504. Its totient is φ = 467376640.

The previous prime is 1018006069. The next prime is 1018006141. The reversal of 1018006138 is 8316008101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 988662249 + 29343889 = 31443^2 + 5417^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363745 + ... + 366532.

Almost surely, 2^1018006138 is an apocalyptic number.

1018006138 is a deficient number, since it is larger than the sum of its proper divisors (638264366).

1018006138 is a wasteful number, since it uses less digits than its factorization.

1018006138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730337.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1018006138 is about 31906.2084554088. The cubic root of 1018006138 is about 1005.9663775427.

The spelling of 1018006138 in words is "one billion, eighteen million, six thousand, one hundred thirty-eight".