2146170917 has 32 divisors (see below), whose sum is σ = 2521165824. Its totient is φ = 1807432000.

The previous prime is 2146170913. The next prime is 2146170931. The reversal of 2146170917 is 7190716412.

It is not a de Polignac number, because 2146170917 - 2² = 2146170913 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146170911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1200098 + ... + 1201884.

It is an arithmetic number, because the mean of its divisors is an integer number (78786432).

Almost surely, 2^2146170917 is an apocalyptic number.

It is an amenable number.

2146170917 is a deficient number, since it is larger than the sum of its proper divisors (374994907).

2146170917 is a wasteful number, since it uses less digits than its factorization.

2146170917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 2146170917 is about 46326.7840131387. The cubic root of 2146170917 is about 1289.8962152347.

The spelling of 2146170917 in words is "two billion, one hundred forty-six million, one hundred seventy thousand, nine hundred seventeen".