2231251647 has 16 divisors (see below), whose sum is σ = 2999232000. Its totient is φ = 1475429184.

The previous prime is 2231251573. The next prime is 2231251657. The reversal of 2231251647 is 7461521322.

It is not a de Polignac number, because 2231251647 - 2¹⁵ = 2231218879 is a prime.

It is a super-3 number, since 3×2231251647³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231251657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214554 + ... + 224712.

It is an arithmetic number, because the mean of its divisors is an integer number (187452000).

Almost surely, 2^2231251647 is an apocalyptic number.

2231251647 is a deficient number, since it is larger than the sum of its proper divisors (767980353).

2231251647 is a wasteful number, since it uses less digits than its factorization.

2231251647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10750.

The product of its digits is 20160, while the sum is 33.

The square root of 2231251647 is about 47236.1265029215. The cubic root of 2231251647 is about 1306.7209420641.

Adding to 2231251647 its reverse (7461521322), we get a palindrome (9692772969).

The spelling of 2231251647 in words is "two billion, two hundred thirty-one million, two hundred fifty-one thousand, six hundred forty-seven".