810946121 has 8 divisors (see below), whose sum is σ = 895981824. Its totient is φ = 730058560.

The previous prime is 810946117. The next prime is 810946127. The reversal of 810946121 is 121649018.

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 810946121 - 2² = 810946117 is a prime.

It is a super-2 number, since 2×810946121² = 1315267222329893282, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (810946127) 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, 1036625 + ... + 1037406.

It is an arithmetic number, because the mean of its divisors is an integer number (111997728).

Almost surely, 2^810946121 is an apocalyptic number.

It is an amenable number.

810946121 is a deficient number, since it is larger than the sum of its proper divisors (85035703).

810946121 is a wasteful number, since it uses less digits than its factorization.

810946121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074071.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 810946121 is about 28477.1157422938. The cubic root of 810946121 is about 932.5325510515.

The spelling of 810946121 in words is "eight hundred ten million, nine hundred forty-six thousand, one hundred twenty-one".