745357049 has 2 divisors, whose sum is σ = 745357050. Its totient is φ = 745357048.

The previous prime is 745357037. The next prime is 745357057. The reversal of 745357049 is 940753547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 422508025 + 322849024 = 20555^2 + 17968^2 .

It is a cyclic number.

It is not a de Polignac number, because 745357049 - 2⁴ = 745357033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (745357069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372678524 + 372678525.

It is an arithmetic number, because the mean of its divisors is an integer number (372678525).

Almost surely, 2^745357049 is an apocalyptic number.

It is an amenable number.

745357049 is a deficient number, since it is larger than the sum of its proper divisors (1).

745357049 is an equidigital number, since it uses as much as digits as its factorization.

745357049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 529200, while the sum is 44.

The square root of 745357049 is about 27301.2279760453. The cubic root of 745357049 is about 906.6815693887.

The spelling of 745357049 in words is "seven hundred forty-five million, three hundred fifty-seven thousand, forty-nine".