130320194 has 4 divisors (see below), whose sum is σ = 195480294. Its totient is φ = 65160096.

The previous prime is 130320193. The next prime is 130320227. The reversal of 130320194 is 491023031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 491023031 = 223 ⋅2201897.

It can be written as a sum of positive squares in only one way, i.e., 115842169 + 14478025 = 10763^2 + 3805^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (130320191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32580047 + ... + 32580050.

Almost surely, 2^130320194 is an apocalyptic number.

130320194 is a deficient number, since it is larger than the sum of its proper divisors (65160100).

130320194 is an equidigital number, since it uses as much as digits as its factorization.

130320194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65160099.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 130320194 is about 11415.7870512725. The cubic root of 130320194 is about 506.9952680435.

The spelling of 130320194 in words is "one hundred thirty million, three hundred twenty thousand, one hundred ninety-four".