809650137 has 8 divisors (see below), whose sum is σ = 1082254336. Its totient is φ = 538406352.

The previous prime is 809650091. The next prime is 809650181. The reversal of 809650137 is 731056908.

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

It is not a de Polignac number, because 809650137 - 2¹⁴ = 809633753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 809650095 and 809650104.

It is not an unprimeable number, because it can be changed into a prime (809650637) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 338713 + ... + 341094.

It is an arithmetic number, because the mean of its divisors is an integer number (135281792).

Almost surely, 2^809650137 is an apocalyptic number.

It is an amenable number.

809650137 is a deficient number, since it is larger than the sum of its proper divisors (272604199).

809650137 is a wasteful number, since it uses less digits than its factorization.

809650137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680207.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 809650137 is about 28454.3518112784. The cubic root of 809650137 is about 932.0355218798.

The spelling of 809650137 in words is "eight hundred nine million, six hundred fifty thousand, one hundred thirty-seven".