809140130 has 8 divisors (see below), whose sum is σ = 1456452252. Its totient is φ = 323656048.

The previous prime is 809140121. The next prime is 809140133. The reversal of 809140130 is 31041908.

It can be written as a sum of positive squares in 2 ways, for example, as 774341929 + 34798201 = 27827^2 + 5899^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 809140130.

It is not an unprimeable number, because it can be changed into a prime (809140133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40456997 + ... + 40457016.

Almost surely, 2^809140130 is an apocalyptic number.

809140130 is a deficient number, since it is larger than the sum of its proper divisors (647312122).

809140130 is a wasteful number, since it uses less digits than its factorization.

809140130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80914020.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 809140130 is about 28445.3885542103. The cubic root of 809140130 is about 931.8397811675.

The spelling of 809140130 in words is "eight hundred nine million, one hundred forty thousand, one hundred thirty".