2115051 has 4 divisors (see below), whose sum is σ = 2820072. Its totient is φ = 1410032.

The previous prime is 2115049. The next prime is 2115059. The reversal of 2115051 is 1505112.

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 2115051 - 2¹ = 2115049 is a prime.

It is a D-number.

2115051 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2115051.

It is not an unprimeable number, because it can be changed into a prime (2115059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352506 + ... + 352511.

It is an arithmetic number, because the mean of its divisors is an integer number (705018).

2^2115051 is an apocalyptic number.

2115051 is a deficient number, since it is larger than the sum of its proper divisors (705021).

2115051 is an equidigital number, since it uses as much as digits as its factorization.

2115051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705020.

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

The square root of 2115051 is about 1454.3214912804. The cubic root of 2115051 is about 128.3631249589.

The spelling of 2115051 in words is "two million, one hundred fifteen thousand, fifty-one".