2215147 has 6 divisors (see below), whose sum is σ = 2434964. Its totient is φ = 2013660.

The previous prime is 2215141. The next prime is 2215159. The reversal of 2215147 is 7415122.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2215147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2215141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9033 + ... + 9274.

2^2215147 is an apocalyptic number.

2215147 is a deficient number, since it is larger than the sum of its proper divisors (219817).

2215147 is a wasteful number, since it uses less digits than its factorization.

2215147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18329 (or 18318 counting only the distinct ones).

The product of its digits is 560, while the sum is 22.

The square root of 2215147 is about 1488.3369914102. The cubic root of 2215147 is about 130.3569480057.

The spelling of 2215147 in words is "two million, two hundred fifteen thousand, one hundred forty-seven".