745589243 has 12 divisors (see below), whose sum is σ = 867797640. Its totient is φ = 638723232.

The previous prime is 745589231. The next prime is 745589261. The reversal of 745589243 is 342985547.

It is not a de Polignac number, because 745589243 - 2¹⁶ = 745523707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745289243) 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 in 11 ways as a sum of consecutive naturals, for example, 126128 + ... + 131906.

It is an arithmetic number, because the mean of its divisors is an integer number (72316470).

Almost surely, 2^745589243 is an apocalyptic number.

745589243 is a deficient number, since it is larger than the sum of its proper divisors (122208397).

745589243 is a wasteful number, since it uses less digits than its factorization.

745589243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8426 (or 8419 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 47.

The square root of 745589243 is about 27305.4800910000. The cubic root of 745589243 is about 906.7757095789.

The spelling of 745589243 in words is "seven hundred forty-five million, five hundred eighty-nine thousand, two hundred forty-three".