8217248131 has 2 divisors, whose sum is σ = 8217248132. Its totient is φ = 8217248130.

The previous prime is 8217248063. The next prime is 8217248147. The reversal of 8217248131 is 1318427128.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8217248131 - 2³¹ = 6069764483 is a prime.

It is a super-2 number, since 2×8217248131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8217248161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4108624065 + 4108624066.

It is an arithmetic number, because the mean of its divisors is an integer number (4108624066).

Almost surely, 2^8217248131 is an apocalyptic number.

8217248131 is a deficient number, since it is larger than the sum of its proper divisors (1).

8217248131 is an equidigital number, since it uses as much as digits as its factorization.

8217248131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21504, while the sum is 37.

The square root of 8217248131 is about 90649.0382243518. The cubic root of 8217248131 is about 2017.9425617925.

The spelling of 8217248131 in words is "eight billion, two hundred seventeen million, two hundred forty-eight thousand, one hundred thirty-one".