2051473 has 6 divisors (see below), whose sum is σ = 2087106. Its totient is φ = 2016432.

The previous prime is 2051461. The next prime is 2051477. The reversal of 2051473 is 3741502.

It can be written as a sum of positive squares in only one way, i.e., 1979649 + 71824 = 1407^2 + 268^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2051473 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4261 + ... + 4717.

It is an arithmetic number, because the mean of its divisors is an integer number (347851).

2^2051473 is an apocalyptic number.

It is an amenable number.

2051473 is a deficient number, since it is larger than the sum of its proper divisors (35633).

2051473 is an frugal number, since it uses more digits than its factorization.

2051473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 2051473 is about 1432.2964078709. The cubic root of 2051473 is about 127.0638280435.

Adding to 2051473 its reverse (3741502), we get a palindrome (5792975).

The spelling of 2051473 in words is "two million, fifty-one thousand, four hundred seventy-three".