2051307 has 12 divisors (see below), whose sum is σ = 2976480. Its totient is φ = 1361328.

The previous prime is 2051281. The next prime is 2051311. The reversal of 2051307 is 7031502.

It is not a de Polignac number, because 2051307 - 2⁸ = 2051051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2051307.

It is not an unprimeable number, because it can be changed into a prime (2051327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2494 + ... + 3212.

It is an arithmetic number, because the mean of its divisors is an integer number (248040).

2^2051307 is an apocalyptic number.

2051307 is a deficient number, since it is larger than the sum of its proper divisors (925173).

2051307 is a wasteful number, since it uses less digits than its factorization.

2051307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 2051307 is about 1432.2384577995. The cubic root of 2051307 is about 127.0604007233.

Adding to 2051307 its sum of digits (18), we get a triangular number (2051325 = T₂₀₂₅).

Adding to 2051307 its reverse (7031502), we get a palindrome (9082809).

The spelling of 2051307 in words is "two million, fifty-one thousand, three hundred seven".