920832161 has 8 divisors (see below), whose sum is σ = 949306344. Its totient is φ = 892644480.

The previous prime is 920832139. The next prime is 920832173. The reversal of 920832161 is 161238029.

It can be written as a sum of positive squares in 4 ways, for example, as 115691536 + 805140625 = 10756^2 + 28375^2 .

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 920832161 - 2²² = 916637857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (920832361) 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, 65090 + ... + 77963.

It is an arithmetic number, because the mean of its divisors is an integer number (118663293).

Almost surely, 2^920832161 is an apocalyptic number.

It is an amenable number.

920832161 is a deficient number, since it is larger than the sum of its proper divisors (28474183).

920832161 is a wasteful number, since it uses less digits than its factorization.

920832161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143251.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 920832161 is about 30345.2164434528. The cubic root of 920832161 is about 972.8819807795.

The spelling of 920832161 in words is "nine hundred twenty million, eight hundred thirty-two thousand, one hundred sixty-one".