143340437 has 2 divisors, whose sum is σ = 143340438. Its totient is φ = 143340436.

The previous prime is 143340433. The next prime is 143340467. The reversal of 143340437 is 734043341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128278276 + 15062161 = 11326^2 + 3881^2 .

It is a cyclic number.

It is not a de Polignac number, because 143340437 - 2² = 143340433 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143340433) 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, 71670218 + 71670219.

It is an arithmetic number, because the mean of its divisors is an integer number (71670219).

Almost surely, 2^143340437 is an apocalyptic number.

It is an amenable number.

143340437 is a deficient number, since it is larger than the sum of its proper divisors (1).

143340437 is an equidigital number, since it uses as much as digits as its factorization.

143340437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 143340437 is about 11972.4866673553. The cubic root of 143340437 is about 523.3468020479.

Adding to 143340437 its reverse (734043341), we get a palindrome (877383778).

The spelling of 143340437 in words is "one hundred forty-three million, three hundred forty thousand, four hundred thirty-seven".