8149313 has 2 divisors, whose sum is σ = 8149314. Its totient is φ = 8149312.

The previous prime is 8149303. The next prime is 8149331. The reversal of 8149313 is 3139418.

Together with next prime (8149331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6385729 + 1763584 = 2527^2 + 1328^2 .

It is a cyclic number.

It is not a de Polignac number, because 8149313 - 2¹⁰ = 8148289 is a prime.

It is a super-2 number, since 2×8149313² = 132822604743938, which contains 22 as substring.

It is a plaindrome in base 11.

It is not a weakly prime, because it can be changed into another prime (8149303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4074656 + 4074657.

It is an arithmetic number, because the mean of its divisors is an integer number (4074657).

Almost surely, 2^8149313 is an apocalyptic number.

It is an amenable number.

8149313 is a deficient number, since it is larger than the sum of its proper divisors (1).

8149313 is an equidigital number, since it uses as much as digits as its factorization.

8149313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 8149313 is about 2854.7001593863. The cubic root of 8149313 is about 201.2366131805.

It can be divided in two parts, 81 and 49313, that added together give a palindrome (49394).

The spelling of 8149313 in words is "eight million, one hundred forty-nine thousand, three hundred thirteen".