745212497 has 2 divisors, whose sum is σ = 745212498. Its totient is φ = 745212496.

The previous prime is 745212467. The next prime is 745212511. The reversal of 745212497 is 794212547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 631064641 + 114147856 = 25121^2 + 10684^2 .

It is a cyclic number.

It is not a de Polignac number, because 745212497 - 2⁸ = 745212241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (745212427) 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, 372606248 + 372606249.

It is an arithmetic number, because the mean of its divisors is an integer number (372606249).

Almost surely, 2^745212497 is an apocalyptic number.

It is an amenable number.

745212497 is a deficient number, since it is larger than the sum of its proper divisors (1).

745212497 is an equidigital number, since it uses as much as digits as its factorization.

745212497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 41.

The square root of 745212497 is about 27298.5804942308. The cubic root of 745212497 is about 906.6229526904.

Subtracting 745212497 from its reverse (794212547), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 745212497 in words is "seven hundred forty-five million, two hundred twelve thousand, four hundred ninety-seven".