143399387 has 2 divisors, whose sum is σ = 143399388. Its totient is φ = 143399386.

The previous prime is 143399371. The next prime is 143399401. The reversal of 143399387 is 783993341.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 143399387 - 2⁴ = 143399371 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (143399357) 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, 71699693 + 71699694.

It is an arithmetic number, because the mean of its divisors is an integer number (71699694).

Almost surely, 2^143399387 is an apocalyptic number.

143399387 is a deficient number, since it is larger than the sum of its proper divisors (1).

143399387 is an equidigital number, since it uses as much as digits as its factorization.

143399387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 47.

The square root of 143399387 is about 11974.9483088655. The cubic root of 143399387 is about 523.4185358547.

The spelling of 143399387 in words is "one hundred forty-three million, three hundred ninety-nine thousand, three hundred eighty-seven".