2081506 has 16 divisors (see below), whose sum is σ = 3594816. Its totient is φ = 885456.

The previous prime is 2081491. The next prime is 2081537. The reversal of 2081506 is 6051802.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1725 + ... + 2671.

It is an arithmetic number, because the mean of its divisors is an integer number (224676).

2^2081506 is an apocalyptic number.

2081506 is a deficient number, since it is larger than the sum of its proper divisors (1513310).

2081506 is a wasteful number, since it uses less digits than its factorization.

2081506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 2081506 is about 1442.7425272723. The cubic root of 2081506 is about 127.6808864021.

The spelling of 2081506 in words is "two million, eighty-one thousand, five hundred six".