809494151 has 8 divisors (see below), whose sum is σ = 857471040. Its totient is φ = 761557248.

The previous prime is 809494123. The next prime is 809494159. The reversal of 809494151 is 151494908.

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

It is a cyclic number.

It is not a de Polignac number, because 809494151 - 2¹⁰ = 809493127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 809494099 and 809494108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809494159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38435 + ... + 55643.

It is an arithmetic number, because the mean of its divisors is an integer number (107183880).

Almost surely, 2^809494151 is an apocalyptic number.

809494151 is a deficient number, since it is larger than the sum of its proper divisors (47976889).

809494151 is a wasteful number, since it uses less digits than its factorization.

809494151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19993.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 809494151 is about 28451.6106925425. The cubic root of 809494151 is about 931.9756631730.

The spelling of 809494151 in words is "eight hundred nine million, four hundred ninety-four thousand, one hundred fifty-one".