2251471 has 2 divisors, whose sum is σ = 2251472. Its totient is φ = 2251470.

The previous prime is 2251451. The next prime is 2251489. The reversal of 2251471 is 1741522.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2251471 - 2⁷ = 2251343 is a prime.

It is a super-3 number, since 3×2251471³ = 34238941264829280333, which contains 333 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2251411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125735 + 1125736.

It is an arithmetic number, because the mean of its divisors is an integer number (1125736).

2^2251471 is an apocalyptic number.

2251471 is a deficient number, since it is larger than the sum of its proper divisors (1).

2251471 is an equidigital number, since it uses as much as digits as its factorization.

2251471 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 2251471 is about 1500.4902532173. The cubic root of 2251471 is about 131.0656198643.

Adding to 2251471 its reverse (1741522), we get a palindrome (3992993).

The spelling of 2251471 in words is "two million, two hundred fifty-one thousand, four hundred seventy-one".