75938143 has 2 divisors, whose sum is σ = 75938144. Its totient is φ = 75938142.

The previous prime is 75938131. The next prime is 75938183. The reversal of 75938143 is 34183957.

It is an a-pointer prime, because the next prime (75938183) can be obtained adding 75938143 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75938143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75938096 and 75938105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75938123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37969071 + 37969072.

It is an arithmetic number, because the mean of its divisors is an integer number (37969072).

Almost surely, 2^75938143 is an apocalyptic number.

75938143 is a deficient number, since it is larger than the sum of its proper divisors (1).

75938143 is an equidigital number, since it uses as much as digits as its factorization.

75938143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 40.

The square root of 75938143 is about 8714.2494226411. The cubic root of 75938143 is about 423.4674082250.

The spelling of 75938143 in words is "seventy-five million, nine hundred thirty-eight thousand, one hundred forty-three".