2051015 has 4 divisors (see below), whose sum is σ = 2461224. Its totient is φ = 1640808.

The previous prime is 2050987. The next prime is 2051041. The reversal of 2051015 is 5101502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2051015 - 2¹⁰ = 2049991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205097 + ... + 205106.

It is an arithmetic number, because the mean of its divisors is an integer number (615306).

2^2051015 is an apocalyptic number.

2051015 is a deficient number, since it is larger than the sum of its proper divisors (410209).

2051015 is an equidigital number, since it uses as much as digits as its factorization.

2051015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410208.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 2051015 is about 1432.1365158392. The cubic root of 2051015 is about 127.0543714945.

Adding to 2051015 its reverse (5101502), we get a palindrome (7152517).

The spelling of 2051015 in words is "two million, fifty-one thousand, fifteen".