849147253 has 2 divisors, whose sum is σ = 849147254. Its totient is φ = 849147252.

The previous prime is 849147241. The next prime is 849147283. The reversal of 849147253 is 352741948.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 801909124 + 47238129 = 28318^2 + 6873^2 .

It is a cyclic number.

It is not a de Polignac number, because 849147253 - 2⁹ = 849146741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (849147203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424573626 + 424573627.

It is an arithmetic number, because the mean of its divisors is an integer number (424573627).

Almost surely, 2^849147253 is an apocalyptic number.

It is an amenable number.

849147253 is a deficient number, since it is larger than the sum of its proper divisors (1).

849147253 is an equidigital number, since it uses as much as digits as its factorization.

849147253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 43.

The square root of 849147253 is about 29140.1313140487. The cubic root of 849147253 is about 946.9513546650.

The spelling of 849147253 in words is "eight hundred forty-nine million, one hundred forty-seven thousand, two hundred fifty-three".