849132651 has 4 divisors (see below), whose sum is σ = 1132176872. Its totient is φ = 566088432.

The previous prime is 849132649. The next prime is 849132733. The reversal of 849132651 is 156231948.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 849132651 - 2¹ = 849132649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (849132601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141522106 + ... + 141522111.

It is an arithmetic number, because the mean of its divisors is an integer number (283044218).

Almost surely, 2^849132651 is an apocalyptic number.

849132651 is a deficient number, since it is larger than the sum of its proper divisors (283044221).

849132651 is a wasteful number, since it uses less digits than its factorization.

849132651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283044220.

The product of its digits is 51840, while the sum is 39.

The square root of 849132651 is about 29139.8807650272. The cubic root of 849132651 is about 946.9459266850.

The spelling of 849132651 in words is "eight hundred forty-nine million, one hundred thirty-two thousand, six hundred fifty-one".