849153191 has 2 divisors, whose sum is σ = 849153192. Its totient is φ = 849153190.

The previous prime is 849153161. The next prime is 849153197. The reversal of 849153191 is 191351948.

849153191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 849153191 - 2⁶ = 849153127 is a prime.

It is a super-2 number, since 2×849153191² = 1442122283570964962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (849153197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424576595 + 424576596.

It is an arithmetic number, because the mean of its divisors is an integer number (424576596).

Almost surely, 2^849153191 is an apocalyptic number.

849153191 is a deficient number, since it is larger than the sum of its proper divisors (1).

849153191 is an equidigital number, since it uses as much as digits as its factorization.

849153191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 41.

The square root of 849153191 is about 29140.2332008514. The cubic root of 849153191 is about 946.9535619712.

The spelling of 849153191 in words is "eight hundred forty-nine million, one hundred fifty-three thousand, one hundred ninety-one".