2215154 has 16 divisors (see below), whose sum is σ = 3440256. Its totient is φ = 1069200.

The previous prime is 2215141. The next prime is 2215159. The reversal of 2215154 is 4515122.

2215154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2215159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8039 + ... + 8309.

It is an arithmetic number, because the mean of its divisors is an integer number (215016).

2^2215154 is an apocalyptic number.

2215154 is a deficient number, since it is larger than the sum of its proper divisors (1225102).

2215154 is a wasteful number, since it uses less digits than its factorization.

2215154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401.

The product of its digits is 400, while the sum is 20.

The square root of 2215154 is about 1488.3393430263. The cubic root of 2215154 is about 130.3570853175.

Subtracting 2215154 from its reverse (4515122), we obtain a cube (2299968 = 132³).

The spelling of 2215154 in words is "two million, two hundred fifteen thousand, one hundred fifty-four".