2081507 has 8 divisors (see below), whose sum is σ = 2223360. Its totient is φ = 1942920.

The previous prime is 2081491. The next prime is 2081537. The reversal of 2081507 is 7051802.

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 2081507 - 2⁴ = 2081491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2081537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 578 + ... + 2120.

It is an arithmetic number, because the mean of its divisors is an integer number (277920).

2^2081507 is an apocalyptic number.

2081507 is a deficient number, since it is larger than the sum of its proper divisors (141853).

2081507 is a wasteful number, since it uses less digits than its factorization.

2081507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 2081507 is about 1442.7428738344. The cubic root of 2081507 is about 127.6809068490.

The spelling of 2081507 in words is "two million, eighty-one thousand, five hundred seven".