850655121 has 8 divisors (see below), whose sum is σ = 1134675360. Its totient is φ = 566869152.

The previous prime is 850655107. The next prime is 850655153. The reversal of 850655121 is 121556058.

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

It is not a de Polignac number, because 850655121 - 2¹⁰ = 850654097 is a prime.

It is a super-2 number, since 2×850655121² = 1447228269767049282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (850655101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49911 + ... + 64748.

It is an arithmetic number, because the mean of its divisors is an integer number (141834420).

Almost surely, 2^850655121 is an apocalyptic number.

It is an amenable number.

850655121 is a deficient number, since it is larger than the sum of its proper divisors (284020239).

850655121 is a wasteful number, since it uses less digits than its factorization.

850655121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117135.

The product of its (nonzero) digits is 12000, while the sum is 33.

The square root of 850655121 is about 29165.9925426857. The cubic root of 850655121 is about 947.5115375588.

The spelling of 850655121 in words is "eight hundred fifty million, six hundred fifty-five thousand, one hundred twenty-one".