2070545 has 4 divisors (see below), whose sum is σ = 2484660. Its totient is φ = 1656432.

The previous prime is 2070533. The next prime is 2070553. The reversal of 2070545 is 5450702.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1164241 + 906304 = 1079^2 + 952^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2070545 is a prime.

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 2070545.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207050 + ... + 207059.

It is an arithmetic number, because the mean of its divisors is an integer number (621165).

2^2070545 is an apocalyptic number.

It is an amenable number.

2070545 is a deficient number, since it is larger than the sum of its proper divisors (414115).

2070545 is an equidigital number, since it uses as much as digits as its factorization.

2070545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414114.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 2070545 is about 1438.9388451216. The cubic root of 2070545 is about 127.4563736427.

The spelling of 2070545 in words is "two million, seventy thousand, five hundred forty-five".