147449 has 2 divisors, whose sum is σ = 147450. Its totient is φ = 147448.

The previous prime is 147419. The next prime is 147451. The reversal of 147449 is 944741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75625 + 71824 = 275^2 + 268^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147449 is a prime.

Together with 147451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (147409) 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, 73724 + 73725.

It is an arithmetic number, because the mean of its divisors is an integer number (73725).

147449 is a Friedman number, since it can be written as 9*4^(4+4-1)-7, using all its digits and the basic arithmetic operations.

2¹⁴⁷⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

147449 is a deficient number, since it is larger than the sum of its proper divisors (1).

147449 is an equidigital number, since it uses as much as digits as its factorization.

147449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 29.

The square root of 147449 is about 383.9908853085. The cubic root of 147449 is about 52.8299999777.

The spelling of 147449 in words is "one hundred forty-seven thousand, four hundred forty-nine".