143970343477 has 2 divisors, whose sum is σ = 143970343478. Its totient is φ = 143970343476.

The previous prime is 143970343453. The next prime is 143970343523. The reversal of 143970343477 is 774343079341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102826683556 + 41143659921 = 320666^2 + 202839^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143970343477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143970343417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71985171738 + 71985171739.

It is an arithmetic number, because the mean of its divisors is an integer number (71985171739).

Almost surely, 2^143970343477 is an apocalyptic number.

It is an amenable number.

143970343477 is a deficient number, since it is larger than the sum of its proper divisors (1).

143970343477 is an equidigital number, since it uses as much as digits as its factorization.

143970343477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5334336, while the sum is 52.

The spelling of 143970343477 in words is "one hundred forty-three billion, nine hundred seventy million, three hundred forty-three thousand, four hundred seventy-seven".