825641151 has 16 divisors (see below), whose sum is σ = 1150431744. Its totient is φ = 526184064.

The previous prime is 825641147. The next prime is 825641171. The reversal of 825641151 is 151146528.

It is not a de Polignac number, because 825641151 - 2² = 825641147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825641171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62026 + ... + 74151.

It is an arithmetic number, because the mean of its divisors is an integer number (71901984).

Almost surely, 2^825641151 is an apocalyptic number.

825641151 is a deficient number, since it is larger than the sum of its proper divisors (324790593).

825641151 is a wasteful number, since it uses less digits than its factorization.

825641151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136270.

The product of its digits is 9600, while the sum is 33.

The square root of 825641151 is about 28733.9720714001. The cubic root of 825641151 is about 938.1316256989.

Adding to 825641151 its reverse (151146528), we get a palindrome (976787679).

The spelling of 825641151 in words is "eight hundred twenty-five million, six hundred forty-one thousand, one hundred fifty-one".