7188130 has 8 divisors (see below), whose sum is σ = 12938652. Its totient is φ = 2875248.

The previous prime is 7188119. The next prime is 7188149. The reversal of 7188130 is 318817.

It is a happy number.

7188130 is nontrivially palindromic in base 11.

It can be written as a sum of positive squares in 2 ways, for example, as 5774409 + 1413721 = 2403^2 + 1189^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 359397 + ... + 359416.

Almost surely, 2^7188130 is an apocalyptic number.

7188130 is a deficient number, since it is larger than the sum of its proper divisors (5750522).

7188130 is a wasteful number, since it uses less digits than its factorization.

7188130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718820.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 7188130 is about 2681.0688167222. The cubic root of 7188130 is about 192.9917041187.

The spelling of 7188130 in words is "seven million, one hundred eighty-eight thousand, one hundred thirty".