143359987 has 2 divisors, whose sum is σ = 143359988. Its totient is φ = 143359986.

The previous prime is 143359973. The next prime is 143359999. The reversal of 143359987 is 789953341.

It is a strong prime.

It is an emirp because it is prime and its reverse (789953341) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143359987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143359987.

It is not a weakly prime, because it can be changed into another prime (143359907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71679993 + 71679994.

It is an arithmetic number, because the mean of its divisors is an integer number (71679994).

Almost surely, 2^143359987 is an apocalyptic number.

143359987 is a deficient number, since it is larger than the sum of its proper divisors (1).

143359987 is an equidigital number, since it uses as much as digits as its factorization.

143359987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 49.

The square root of 143359987 is about 11973.3030948022. The cubic root of 143359987 is about 523.3705938103.

The spelling of 143359987 in words is "one hundred forty-three million, three hundred fifty-nine thousand, nine hundred eighty-seven".