2215081 has 8 divisors (see below), whose sum is σ = 2448000. Its totient is φ = 1987440.

The previous prime is 2215067. The next prime is 2215091. The reversal of 2215081 is 1805122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2215081 - 2¹¹ = 2213033 is a prime.

It is a super-2 number, since 2×2215081² = 9813167673122, which contains 22 as substring.

It is a Duffinian number.

2215081 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2215051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406 + ... + 2143.

It is an arithmetic number, because the mean of its divisors is an integer number (306000).

2^2215081 is an apocalyptic number.

It is an amenable number.

2215081 is a deficient number, since it is larger than the sum of its proper divisors (232919).

2215081 is a wasteful number, since it uses less digits than its factorization.

2215081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 2215081 is about 1488.3148188471. The cubic root of 2215081 is about 130.3556533370.

The spelling of 2215081 in words is "two million, two hundred fifteen thousand, eighty-one".