7138210 has 16 divisors (see below), whose sum is σ = 12964536. Its totient is φ = 2829568.

The previous prime is 7138207. The next prime is 7138217. The reversal of 7138210 is 128317.

It can be written as a sum of positive squares in 4 ways, for example, as 3674889 + 3463321 = 1917^2 + 1861^2 .

It is not an unprimeable number, because it can be changed into a prime (7138217) by changing a digit.

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, 2029 + ... + 4288.

Almost surely, 2^7138210 is an apocalyptic number.

7138210 is a deficient number, since it is larger than the sum of its proper divisors (5826326).

7138210 is a wasteful number, since it uses less digits than its factorization.

7138210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6437.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 7138210 is about 2671.7428768502. The cubic root of 7138210 is about 192.5439040805.

The spelling of 7138210 in words is "seven million, one hundred thirty-eight thousand, two hundred ten".