2071445 has 8 divisors (see below), whose sum is σ = 2553144. Its totient is φ = 1612224.

The previous prime is 2071429. The next prime is 2071453. The reversal of 2071445 is 5441702.

It can be written as a sum of positive squares in 4 ways, for example, as 323761 + 1747684 = 569^2 + 1322^2 .

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 2071445 - 2⁴ = 2071429 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2071445.

It is a congruent 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, 5414 + ... + 5783.

It is an arithmetic number, because the mean of its divisors is an integer number (319143).

2^2071445 is an apocalyptic number.

It is an amenable number.

2071445 is a deficient number, since it is larger than the sum of its proper divisors (481699).

2071445 is a wasteful number, since it uses less digits than its factorization.

2071445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11239.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 2071445 is about 1439.2515416007. The cubic root of 2071445 is about 127.4748380437.

The spelling of 2071445 in words is "two million, seventy-one thousand, four hundred forty-five".