143973433 has 2 divisors, whose sum is σ = 143973434. Its totient is φ = 143973432.

The previous prime is 143973409. The next prime is 143973449. The reversal of 143973433 is 334379341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137663289 + 6310144 = 11733^2 + 2512^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143973433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 143973392 and 143973401.

It is not a weakly prime, because it can be changed into another prime (143973463) 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, 71986716 + 71986717.

It is an arithmetic number, because the mean of its divisors is an integer number (71986717).

Almost surely, 2^143973433 is an apocalyptic number.

It is an amenable number.

143973433 is a deficient number, since it is larger than the sum of its proper divisors (1).

143973433 is an equidigital number, since it uses as much as digits as its factorization.

143973433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 37.

The square root of 143973433 is about 11998.8929906054. The cubic root of 143973433 is about 524.1160429534.

The spelling of 143973433 in words is "one hundred forty-three million, nine hundred seventy-three thousand, four hundred thirty-three".