8131463 has 2 divisors, whose sum is σ = 8131464. Its totient is φ = 8131462.

The previous prime is 8131421. The next prime is 8131469. The reversal of 8131463 is 3641318.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8131463 - 2⁶ = 8131399 is a prime.

It is a super-2 number, since 2×8131463² = 132241381040738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8131469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4065731 + 4065732.

It is an arithmetic number, because the mean of its divisors is an integer number (4065732).

Almost surely, 2^8131463 is an apocalyptic number.

8131463 is a deficient number, since it is larger than the sum of its proper divisors (1).

8131463 is an equidigital number, since it uses as much as digits as its factorization.

8131463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

The square root of 8131463 is about 2851.5720225868. The cubic root of 8131463 is about 201.0895783161.

The spelling of 8131463 in words is "eight million, one hundred thirty-one thousand, four hundred sixty-three".