745809143 has 2 divisors, whose sum is σ = 745809144. Its totient is φ = 745809142.

The previous prime is 745809139. The next prime is 745809167. The reversal of 745809143 is 341908547.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 745809143 - 2² = 745809139 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 745809143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745809133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372904571 + 372904572.

It is an arithmetic number, because the mean of its divisors is an integer number (372904572).

Almost surely, 2^745809143 is an apocalyptic number.

745809143 is a deficient number, since it is larger than the sum of its proper divisors (1).

745809143 is an equidigital number, since it uses as much as digits as its factorization.

745809143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 745809143 is about 27309.5064583745. The cubic root of 745809143 is about 906.8648473002.

The spelling of 745809143 in words is "seven hundred forty-five million, eight hundred nine thousand, one hundred forty-three".