214605091 has 2 divisors, whose sum is σ = 214605092. Its totient is φ = 214605090.

The previous prime is 214605073. The next prime is 214605113. The reversal of 214605091 is 190506412.

214605091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214605091 is a prime.

It is not a weakly prime, because it can be changed into another prime (214605491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107302545 + 107302546.

It is an arithmetic number, because the mean of its divisors is an integer number (107302546).

Almost surely, 2^214605091 is an apocalyptic number.

214605091 is a deficient number, since it is larger than the sum of its proper divisors (1).

214605091 is an equidigital number, since it uses as much as digits as its factorization.

214605091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 214605091 is about 14649.4058241282. The cubic root of 214605091 is about 598.7056272659.

The spelling of 214605091 in words is "two hundred fourteen million, six hundred five thousand, ninety-one".