745273 has 2 divisors, whose sum is σ = 745274. Its totient is φ = 745272.

The previous prime is 745249. The next prime is 745301. The reversal of 745273 is 372547.

It is an a-pointer prime, because the next prime (745301) can be obtained adding 745273 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 466489 + 278784 = 683^2 + 528^2 .

It is a cyclic number.

It is not a de Polignac number, because 745273 - 2⁹ = 744761 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (745243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372636 + 372637.

It is an arithmetic number, because the mean of its divisors is an integer number (372637).

2⁷⁴⁵²⁷³ is an apocalyptic number.

It is an amenable number.

745273 is a deficient number, since it is larger than the sum of its proper divisors (1).

745273 is an equidigital number, since it uses as much as digits as its factorization.

745273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5880, while the sum is 28.

The square root of 745273 is about 863.2919552504. The cubic root of 745273 is about 90.6647487940.

The spelling of 745273 in words is "seven hundred forty-five thousand, two hundred seventy-three".