2051115 has 32 divisors (see below), whose sum is σ = 3704832. Its totient is φ = 960000.

The previous prime is 2051113. The next prime is 2051123. The reversal of 2051115 is 5111502.

It is not a de Polignac number, because 2051115 - 2¹ = 2051113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

2051115 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2051094 and 2051103.

It is not an unprimeable number, because it can be changed into a prime (2051111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4915 + ... + 5315.

It is an arithmetic number, because the mean of its divisors is an integer number (115776).

2^2051115 is an apocalyptic number.

2051115 is a deficient number, since it is larger than the sum of its proper divisors (1653717).

2051115 is a wasteful number, since it uses less digits than its factorization.

2051115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 2051115 is about 1432.1714282864. The cubic root of 2051115 is about 127.0564363633.

Adding to 2051115 its reverse (5111502), we get a palindrome (7162617).

The spelling of 2051115 in words is "two million, fifty-one thousand, one hundred fifteen".