7138086 has 32 divisors (see below), whose sum is σ = 14847360. Its totient is φ = 2286144.

The previous prime is 7138069. The next prime is 7138121. The reversal of 7138086 is 6808317.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18645 + ... + 19023.

It is an arithmetic number, because the mean of its divisors is an integer number (463980).

Almost surely, 2^7138086 is an apocalyptic number.

7138086 is an abundant number, since it is smaller than the sum of its proper divisors (7709274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7138086 is a wasteful number, since it uses less digits than its factorization.

7138086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 7138086 is about 2671.7196709236. The cubic root of 7138086 is about 192.5427891613.

The spelling of 7138086 in words is "seven million, one hundred thirty-eight thousand, eighty-six".