2215471 has 2 divisors, whose sum is σ = 2215472. Its totient is φ = 2215470.

The previous prime is 2215469. The next prime is 2215487. The reversal of 2215471 is 1745122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2215471 - 2¹ = 2215469 is a prime.

It is a super-3 number, since 3×2215471³ = 32622667035488796333, which contains 333 as substring.

Together with 2215469, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2212471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107735 + 1107736.

It is an arithmetic number, because the mean of its divisors is an integer number (1107736).

2^2215471 is an apocalyptic number.

2215471 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215471 is an equidigital number, since it uses as much as digits as its factorization.

2215471 is an evil number, because the sum of its binary digits is even.

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

The square root of 2215471 is about 1488.4458337474. The cubic root of 2215471 is about 130.3633032787.

The spelling of 2215471 in words is "two million, two hundred fifteen thousand, four hundred seventy-one".