912117 has 4 divisors (see below), whose sum is σ = 1216160. Its totient is φ = 608076.

The previous prime is 912103. The next prime is 912167. The reversal of 912117 is 711219.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 711219 = 3 ⋅237073.

It is not a de Polignac number, because 912117 - 2⁶ = 912053 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 912093 and 912102.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 912117.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152017 + ... + 152022.

It is an arithmetic number, because the mean of its divisors is an integer number (304040).

2⁹¹²¹¹⁷ is an apocalyptic number.

It is an amenable number.

912117 is a deficient number, since it is larger than the sum of its proper divisors (304043).

912117 is a wasteful number, since it uses less digits than its factorization.

912117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304042.

The product of its digits is 126, while the sum is 21.

The square root of 912117 is about 955.0481663246. The cubic root of 912117 is about 96.9802985460.

The spelling of 912117 in words is "nine hundred twelve thousand, one hundred seventeen".