214454893 has 2 divisors, whose sum is σ = 214454894. Its totient is φ = 214454892.

The previous prime is 214454879. The next prime is 214454897. The reversal of 214454893 is 398454412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194267844 + 20187049 = 13938^2 + 4493^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214454893 is a prime.

It is a super-2 number, since 2×214454893² = 91981802263282898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214454897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107227446 + 107227447.

It is an arithmetic number, because the mean of its divisors is an integer number (107227447).

Almost surely, 2^214454893 is an apocalyptic number.

It is an amenable number.

214454893 is a deficient number, since it is larger than the sum of its proper divisors (1).

214454893 is an equidigital number, since it uses as much as digits as its factorization.

214454893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 40.

The square root of 214454893 is about 14644.2785073216. The cubic root of 214454893 is about 598.5659204610.

The spelling of 214454893 in words is "two hundred fourteen million, four hundred fifty-four thousand, eight hundred ninety-three".