2144671 has 2 divisors, whose sum is σ = 2144672. Its totient is φ = 2144670.

The previous prime is 2144647. The next prime is 2144677. The reversal of 2144671 is 1764412.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2144671 is a prime.

It is a super-2 number, since 2×2144671² = 9199227396482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2144677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072335 + 1072336.

It is an arithmetic number, because the mean of its divisors is an integer number (1072336).

2^2144671 is an apocalyptic number.

2144671 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144671 is an equidigital number, since it uses as much as digits as its factorization.

2144671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 25.

The square root of 2144671 is about 1464.4695285324. The cubic root of 2144671 is about 128.9595650768.

The spelling of 2144671 in words is "two million, one hundred forty-four thousand, six hundred seventy-one".