2051745 has 16 divisors (see below), whose sum is σ = 3360192. Its totient is φ = 1068480.

The previous prime is 2051743. The next prime is 2051759. The reversal of 2051745 is 5471502.

It is not a de Polignac number, because 2051745 - 2¹ = 2051743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2051743) 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, 946 + ... + 2235.

It is an arithmetic number, because the mean of its divisors is an integer number (210012).

2^2051745 is an apocalyptic number.

It is an amenable number.

2051745 is a deficient number, since it is larger than the sum of its proper divisors (1308447).

2051745 is a wasteful number, since it uses less digits than its factorization.

2051745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3232.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 2051745 is about 1432.3913571367. The cubic root of 2051745 is about 127.0694434937.

The spelling of 2051745 in words is "two million, fifty-one thousand, seven hundred forty-five".