745422737 has 2 divisors, whose sum is σ = 745422738. Its totient is φ = 745422736.

The previous prime is 745422719. The next prime is 745422739. The reversal of 745422737 is 737224547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 508231936 + 237190801 = 22544^2 + 15401^2 .

It is a cyclic number.

It is not a de Polignac number, because 745422737 - 2¹⁴ = 745406353 is a prime.

Together with 745422739, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 745422694 and 745422703.

It is not a weakly prime, because it can be changed into another prime (745422739) 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 as a sum of consecutive naturals, namely, 372711368 + 372711369.

It is an arithmetic number, because the mean of its divisors is an integer number (372711369).

Almost surely, 2^745422737 is an apocalyptic number.

It is an amenable number.

745422737 is a deficient number, since it is larger than the sum of its proper divisors (1).

745422737 is an equidigital number, since it uses as much as digits as its factorization.

745422737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 329280, while the sum is 41.

The square root of 745422737 is about 27302.4309723512. The cubic root of 745422737 is about 906.7082037601.

The spelling of 745422737 in words is "seven hundred forty-five million, four hundred twenty-two thousand, seven hundred thirty-seven".