75145572143 has 2 divisors, whose sum is σ = 75145572144. Its totient is φ = 75145572142.

The previous prime is 75145572121. The next prime is 75145572157. The reversal of 75145572143 is 34127554157.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75145572143 is a prime.

It is a super-2 number, since 2×75145572143² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75145572094 and 75145572103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75145572113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37572786071 + 37572786072.

It is an arithmetic number, because the mean of its divisors is an integer number (37572786072).

Almost surely, 2^75145572143 is an apocalyptic number.

75145572143 is a deficient number, since it is larger than the sum of its proper divisors (1).

75145572143 is an equidigital number, since it uses as much as digits as its factorization.

75145572143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 588000, while the sum is 44.

The spelling of 75145572143 in words is "seventy-five billion, one hundred forty-five million, five hundred seventy-two thousand, one hundred forty-three".