214140191 has 2 divisors, whose sum is σ = 214140192. Its totient is φ = 214140190.

The previous prime is 214140181. The next prime is 214140229. The reversal of 214140191 is 191041412.

214140191 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 not a de Polignac number, because 214140191 - 2²⁶ = 147031327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214140151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107070095 + 107070096.

It is an arithmetic number, because the mean of its divisors is an integer number (107070096).

Almost surely, 2^214140191 is an apocalyptic number.

214140191 is a deficient number, since it is larger than the sum of its proper divisors (1).

214140191 is an equidigital number, since it uses as much as digits as its factorization.

214140191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 214140191 is about 14633.5296835726. The cubic root of 214140191 is about 598.2729884509.

The spelling of 214140191 in words is "two hundred fourteen million, one hundred forty thousand, one hundred ninety-one".