214121489 has 2 divisors, whose sum is σ = 214121490. Its totient is φ = 214121488.

The previous prime is 214121461. The next prime is 214121543. The reversal of 214121489 is 984121412.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180015889 + 34105600 = 13417^2 + 5840^2 .

It is a cyclic number.

It is not a de Polignac number, because 214121489 - 2⁸ = 214121233 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (214121419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107060744 + 107060745.

It is an arithmetic number, because the mean of its divisors is an integer number (107060745).

Almost surely, 2^214121489 is an apocalyptic number.

It is an amenable number.

214121489 is a deficient number, since it is larger than the sum of its proper divisors (1).

214121489 is an equidigital number, since it uses as much as digits as its factorization.

214121489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 32.

The square root of 214121489 is about 14632.8906576930. The cubic root of 214121489 is about 598.2555711581.

The spelling of 214121489 in words is "two hundred fourteen million, one hundred twenty-one thousand, four hundred eighty-nine".