912161 has 8 divisors (see below), whose sum is σ = 950760. Its totient is φ = 874368.

The previous prime is 912103. The next prime is 912167. The reversal of 912161 is 161219.

It can be written as a sum of positive squares in 4 ways, for example, as 67600 + 844561 = 260^2 + 919^2 .

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 912161 - 2¹⁴ = 895777 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 912161.

It is not an unprimeable number, because it can be changed into a prime (912167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3155 + ... + 3431.

It is an arithmetic number, because the mean of its divisors is an integer number (118845).

2⁹¹²¹⁶¹ is an apocalyptic number.

It is an amenable number.

912161 is a deficient number, since it is larger than the sum of its proper divisors (38599).

912161 is a wasteful number, since it uses less digits than its factorization.

912161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403.

The product of its digits is 108, while the sum is 20.

The square root of 912161 is about 955.0712015342. The cubic root of 912161 is about 96.9818579455.

The spelling of 912161 in words is "nine hundred twelve thousand, one hundred sixty-one".