2071915 has 4 divisors (see below), whose sum is σ = 2486304. Its totient is φ = 1657528.

The previous prime is 2071913. The next prime is 2071921. The reversal of 2071915 is 5191702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5191702 = 2 ⋅2595851.

It is a cyclic number.

It is not a de Polignac number, because 2071915 - 2¹ = 2071913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2071915.

It is not an unprimeable number, because it can be changed into a prime (2071913) 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, 207187 + ... + 207196.

It is an arithmetic number, because the mean of its divisors is an integer number (621576).

2^2071915 is an apocalyptic number.

2071915 is a deficient number, since it is larger than the sum of its proper divisors (414389).

2071915 is an equidigital number, since it uses as much as digits as its factorization.

2071915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414388.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 2071915 is about 1439.4148116509. The cubic root of 2071915 is about 127.4844784386.

The spelling of 2071915 in words is "two million, seventy-one thousand, nine hundred fifteen".