143846449 has 2 divisors, whose sum is σ = 143846450. Its totient is φ = 143846448.

The previous prime is 143846447. The next prime is 143846453. The reversal of 143846449 is 944648341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143832049 + 14400 = 11993^2 + 120^2 .

It is a cyclic number.

It is not a de Polignac number, because 143846449 - 2¹ = 143846447 is a prime.

Together with 143846447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (143846447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71923224 + 71923225.

It is an arithmetic number, because the mean of its divisors is an integer number (71923225).

Almost surely, 2^143846449 is an apocalyptic number.

It is an amenable number.

143846449 is a deficient number, since it is larger than the sum of its proper divisors (1).

143846449 is an equidigital number, since it uses as much as digits as its factorization.

143846449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 43.

The square root of 143846449 is about 11993.6003351788. The cubic root of 143846449 is about 523.9619082016.

The spelling of 143846449 in words is "one hundred forty-three million, eight hundred forty-six thousand, four hundred forty-nine".