2045081 has 4 divisors (see below), whose sum is σ = 2061312. Its totient is φ = 2028852.

The previous prime is 2045077. The next prime is 2045089. The reversal of 2045081 is 1805402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2045081 - 2² = 2045077 is a prime.

It is a super-2 number, since 2×2045081² = 8364712593122, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (2045089) 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, 7925 + ... + 8178.

It is an arithmetic number, because the mean of its divisors is an integer number (515328).

2^2045081 is an apocalyptic number.

It is an amenable number.

2045081 is a deficient number, since it is larger than the sum of its proper divisors (16231).

2045081 is a wasteful number, since it uses less digits than its factorization.

2045081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16230.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2045081 is about 1430.0632853129. The cubic root of 2045081 is about 126.9317218288.

The spelling of 2045081 in words is "two million, forty-five thousand, eighty-one".