2991015 has 12 divisors (see below), whose sum is σ = 5184504. Its totient is φ = 1595184.

The previous prime is 2990993. The next prime is 2991041. The reversal of 2991015 is 5101992.

It is a happy number.

It is not a de Polignac number, because 2991015 - 2⁵ = 2990983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2991015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33189 + ... + 33278.

It is an arithmetic number, because the mean of its divisors is an integer number (432042).

2^2991015 is an apocalyptic number.

2991015 is a deficient number, since it is larger than the sum of its proper divisors (2193489).

2991015 is a wasteful number, since it uses less digits than its factorization.

2991015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66478 (or 66475 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

The square root of 2991015 is about 1729.4551165035. The cubic root of 2991015 is about 144.0808284644.

The spelling of 2991015 in words is "two million, nine hundred ninety-one thousand, fifteen".