7138090 has 16 divisors (see below), whose sum is σ = 12879072. Its totient is φ = 2848464.

The previous prime is 7138069. The next prime is 7138121. The reversal of 7138090 is 908317.

It is an Ulam 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 7 ways as a sum of consecutive naturals, for example, 7417 + ... + 8323.

It is an arithmetic number, because the mean of its divisors is an integer number (804942).

Almost surely, 2^7138090 is an apocalyptic number.

7138090 is a deficient number, since it is larger than the sum of its proper divisors (5740982).

7138090 is a wasteful number, since it uses less digits than its factorization.

7138090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 7138090 is about 2671.7204195050. The cubic root of 7138090 is about 192.5428251266.

The spelling of 7138090 in words is "seven million, one hundred thirty-eight thousand, ninety".