143242751 has 2 divisors, whose sum is σ = 143242752. Its totient is φ = 143242750.

The previous prime is 143242739. The next prime is 143242753. The reversal of 143242751 is 157242341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 143242751 - 2¹⁰ = 143241727 is a prime.

It is a Sophie Germain prime.

Together with 143242753, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143242753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71621375 + 71621376.

It is an arithmetic number, because the mean of its divisors is an integer number (71621376).

Almost surely, 2^143242751 is an apocalyptic number.

143242751 is a deficient number, since it is larger than the sum of its proper divisors (1).

143242751 is an equidigital number, since it uses as much as digits as its factorization.

143242751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 29.

The square root of 143242751 is about 11968.4063684352. The cubic root of 143242751 is about 523.2278887003.

The spelling of 143242751 in words is "one hundred forty-three million, two hundred forty-two thousand, seven hundred fifty-one".