7130194 has 4 divisors (see below), whose sum is σ = 10695294. Its totient is φ = 3565096.

The previous prime is 7130177. The next prime is 7130197. The reversal of 7130194 is 4910317.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4687225 + 2442969 = 2165^2 + 1563^2 .

It is not an unprimeable number, because it can be changed into a prime (7130197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1782547 + ... + 1782550.

Almost surely, 2^7130194 is an apocalyptic number.

7130194 is a deficient number, since it is larger than the sum of its proper divisors (3565100).

7130194 is a wasteful number, since it uses less digits than its factorization.

7130194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3565099.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 7130194 is about 2670.2423111021. The cubic root of 7130194 is about 192.4718033699.

The spelling of 7130194 in words is "seven million, one hundred thirty thousand, one hundred ninety-four".