8102147231 has 4 divisors (see below), whose sum is σ = 8160436200. Its totient is φ = 8043858264.

The previous prime is 8102147201. The next prime is 8102147243. The reversal of 8102147231 is 1327412018.

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

It is a cyclic number.

It is not a de Polignac number, because 8102147231 - 2¹⁴ = 8102130847 is a prime.

It is a super-2 number, since 2×8102147231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8102147194 and 8102147203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8102147201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29144276 + ... + 29144553.

It is an arithmetic number, because the mean of its divisors is an integer number (2040109050).

Almost surely, 2^8102147231 is an apocalyptic number.

8102147231 is a deficient number, since it is larger than the sum of its proper divisors (58288969).

8102147231 is a wasteful number, since it uses less digits than its factorization.

8102147231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58288968.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 8102147231 is about 90011.9282706464. The cubic root of 8102147231 is about 2008.4762947139.

Adding to 8102147231 its reverse (1327412018), we get a palindrome (9429559249).

The spelling of 8102147231 in words is "eight billion, one hundred two million, one hundred forty-seven thousand, two hundred thirty-one".