8315149 has 2 divisors, whose sum is σ = 8315150. Its totient is φ = 8315148.

The previous prime is 8315143. The next prime is 8315201. The reversal of 8315149 is 9415138.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5322249 + 2992900 = 2307^2 + 1730^2 .

It is a cyclic number.

It is not a de Polignac number, because 8315149 - 2¹¹ = 8313101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8315149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8315143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4157574 + 4157575.

It is an arithmetic number, because the mean of its divisors is an integer number (4157575).

Almost surely, 2^8315149 is an apocalyptic number.

It is an amenable number.

8315149 is a deficient number, since it is larger than the sum of its proper divisors (1).

8315149 is an equidigital number, since it uses as much as digits as its factorization.

8315149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 31.

The square root of 8315149 is about 2883.6000069358. The cubic root of 8315149 is about 202.5924914068.

It can be divided in two parts, 8315 and 149, that added together give a square (8464 = 92²).

The spelling of 8315149 in words is "eight million, three hundred fifteen thousand, one hundred forty-nine".