8133449 has 2 divisors, whose sum is σ = 8133450. Its totient is φ = 8133448.

The previous prime is 8133431. The next prime is 8133469. The reversal of 8133449 is 9443318.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4644025 + 3489424 = 2155^2 + 1868^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8133449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8133469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4066724 + 4066725.

It is an arithmetic number, because the mean of its divisors is an integer number (4066725).

Almost surely, 2^8133449 is an apocalyptic number.

It is an amenable number.

8133449 is a deficient number, since it is larger than the sum of its proper divisors (1).

8133449 is an equidigital number, since it uses as much as digits as its factorization.

8133449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 32.

The square root of 8133449 is about 2851.9202303010. The cubic root of 8133449 is about 201.1059481212.

The spelling of 8133449 in words is "eight million, one hundred thirty-three thousand, four hundred forty-nine".