143943937 has 2 divisors, whose sum is σ = 143943938. Its totient is φ = 143943936.

The previous prime is 143943871. The next prime is 143943967. The reversal of 143943937 is 739349341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142945936 + 998001 = 11956^2 + 999^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143943937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 143943893 and 143943902.

It is not a weakly prime, because it can be changed into another prime (143943967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71971968 + 71971969.

It is an arithmetic number, because the mean of its divisors is an integer number (71971969).

Almost surely, 2^143943937 is an apocalyptic number.

It is an amenable number.

143943937 is a deficient number, since it is larger than the sum of its proper divisors (1).

143943937 is an equidigital number, since it uses as much as digits as its factorization.

143943937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 43.

The square root of 143943937 is about 11997.6638142598. The cubic root of 143943937 is about 524.0802484268.

The spelling of 143943937 in words is "one hundred forty-three million, nine hundred forty-three thousand, nine hundred thirty-seven".