143428997 has 2 divisors, whose sum is σ = 143428998. Its totient is φ = 143428996.

The previous prime is 143428973. The next prime is 143429021. The reversal of 143428997 is 799824341.

It is a balanced prime because it is at equal distance from previous prime (143428973) and next prime (143429021).

It can be written as a sum of positive squares in only one way, i.e., 139098436 + 4330561 = 11794^2 + 2081^2 .

It is an emirp because it is prime and its reverse (799824341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143428997 - 2⁶ = 143428933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143428697) 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, 71714498 + 71714499.

It is an arithmetic number, because the mean of its divisors is an integer number (71714499).

Almost surely, 2^143428997 is an apocalyptic number.

It is an amenable number.

143428997 is a deficient number, since it is larger than the sum of its proper divisors (1).

143428997 is an equidigital number, since it uses as much as digits as its factorization.

143428997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 47.

The square root of 143428997 is about 11976.1845760660. The cubic root of 143428997 is about 523.4545596169.

The spelling of 143428997 in words is "one hundred forty-three million, four hundred twenty-eight thousand, nine hundred ninety-seven".