2167271231 has 16 divisors (see below), whose sum is σ = 2349360288. Its totient is φ = 1991808000.

The previous prime is 2167271221. The next prime is 2167271243. The reversal of 2167271231 is 1321727612.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2167271231 is a prime.

It is a super-2 number, since 2×2167271231² = 9394129177440510722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2167271221) 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, 116696 + ... + 133986.

It is an arithmetic number, because the mean of its divisors is an integer number (146835018).

Almost surely, 2^2167271231 is an apocalyptic number.

2167271231 is a deficient number, since it is larger than the sum of its proper divisors (182089057).

2167271231 is a wasteful number, since it uses less digits than its factorization.

2167271231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17482.

The product of its digits is 7056, while the sum is 32.

The square root of 2167271231 is about 46553.9604222885. The cubic root of 2167271231 is about 1294.1096887334.

Adding to 2167271231 its reverse (1321727612), we get a palindrome (3488998843).

The spelling of 2167271231 in words is "two billion, one hundred sixty-seven million, two hundred seventy-one thousand, two hundred thirty-one".