214451971 has 2 divisors, whose sum is σ = 214451972. Its totient is φ = 214451970.

The previous prime is 214451959. The next prime is 214451981. The reversal of 214451971 is 179154412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 214451971 - 2²⁵ = 180897539 is a prime.

It is not a weakly prime, because it can be changed into another prime (214451981) 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 as a sum of consecutive naturals, namely, 107225985 + 107225986.

It is an arithmetic number, because the mean of its divisors is an integer number (107225986).

Almost surely, 2^214451971 is an apocalyptic number.

214451971 is a deficient number, since it is larger than the sum of its proper divisors (1).

214451971 is an equidigital number, since it uses as much as digits as its factorization.

214451971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 34.

The square root of 214451971 is about 14644.1787410561. The cubic root of 214451971 is about 598.5632019133.

The spelling of 214451971 in words is "two hundred fourteen million, four hundred fifty-one thousand, nine hundred seventy-one".