2081512 has 8 divisors (see below), whose sum is σ = 3902850. Its totient is φ = 1040752.

The previous prime is 2081491. The next prime is 2081537. The reversal of 2081512 is 2151802.

It can be written as a sum of positive squares in only one way, i.e., 1653796 + 427716 = 1286^2 + 654^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2081512² = 8665384412288, which contains 22 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2081512.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130087 + ... + 130102.

2^2081512 is an apocalyptic number.

It is an amenable number.

2081512 is a deficient number, since it is larger than the sum of its proper divisors (1821338).

2081512 is a wasteful number, since it uses less digits than its factorization.

2081512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260195 (or 260191 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 2081512 is about 1442.7446066439. The cubic root of 2081512 is about 127.6810090833.

The spelling of 2081512 in words is "two million, eighty-one thousand, five hundred twelve".