745213033 has 2 divisors, whose sum is σ = 745213034. Its totient is φ = 745213032.

The previous prime is 745213031. The next prime is 745213039. The reversal of 745213033 is 330312547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 580424464 + 164788569 = 24092^2 + 12837^2 .

It is a cyclic number.

It is not a de Polignac number, because 745213033 - 2¹ = 745213031 is a prime.

Together with 745213031, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 745212992 and 745213010.

It is not a weakly prime, because it can be changed into another prime (745213031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372606516 + 372606517.

It is an arithmetic number, because the mean of its divisors is an integer number (372606517).

Almost surely, 2^745213033 is an apocalyptic number.

It is an amenable number.

745213033 is a deficient number, since it is larger than the sum of its proper divisors (1).

745213033 is an equidigital number, since it uses as much as digits as its factorization.

745213033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 745213033 is about 27298.5903115894. The cubic root of 745213033 is about 906.6231700556.

The spelling of 745213033 in words is "seven hundred forty-five million, two hundred thirteen thousand, thirty-three".