2051445 has 16 divisors (see below), whose sum is σ = 3580992. Its totient is φ = 994560.

The previous prime is 2051443. The next prime is 2051459. The reversal of 2051445 is 5441502.

It is not a de Polignac number, because 2051445 - 2¹ = 2051443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6052 + ... + 6381.

It is an arithmetic number, because the mean of its divisors is an integer number (223812).

2^2051445 is an apocalyptic number.

It is an amenable number.

2051445 is a deficient number, since it is larger than the sum of its proper divisors (1529547).

2051445 is a wasteful number, since it uses less digits than its factorization.

2051445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12452.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 2051445 is about 1432.2866333245. The cubic root of 2051445 is about 127.0632499542.

Adding to 2051445 its reverse (5441502), we get a palindrome (7492947).

The spelling of 2051445 in words is "two million, fifty-one thousand, four hundred forty-five".