143212049 has 2 divisors, whose sum is σ = 143212050. Its totient is φ = 143212048.

The previous prime is 143212037. The next prime is 143212051. The reversal of 143212049 is 940212341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139240000 + 3972049 = 11800^2 + 1993^2 .

It is an emirp because it is prime and its reverse (940212341) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143212049 is a prime.

Together with 143212051, 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 (143212009) 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, 71606024 + 71606025.

It is an arithmetic number, because the mean of its divisors is an integer number (71606025).

Almost surely, 2^143212049 is an apocalyptic number.

It is an amenable number.

143212049 is a deficient number, since it is larger than the sum of its proper divisors (1).

143212049 is an equidigital number, since it uses as much as digits as its factorization.

143212049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 143212049 is about 11967.1236727962. The cubic root of 143212049 is about 523.1905039336.

The spelling of 143212049 in words is "one hundred forty-three million, two hundred twelve thousand, forty-nine".