253214191 has 2 divisors, whose sum is σ = 253214192. Its totient is φ = 253214190.

The previous prime is 253214179. The next prime is 253214243. The reversal of 253214191 is 191412352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253214191 - 2⁷ = 253214063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253214131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126607095 + 126607096.

It is an arithmetic number, because the mean of its divisors is an integer number (126607096).

Almost surely, 2^253214191 is an apocalyptic number.

253214191 is a deficient number, since it is larger than the sum of its proper divisors (1).

253214191 is an equidigital number, since it uses as much as digits as its factorization.

253214191 is an odious number, because the sum of its binary digits is odd.

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

The square root of 253214191 is about 15912.7053325322. The cubic root of 253214191 is about 632.6487881309.

The spelling of 253214191 in words is "two hundred fifty-three million, two hundred fourteen thousand, one hundred ninety-one".