745405741 has 2 divisors, whose sum is σ = 745405742. Its totient is φ = 745405740.

The previous prime is 745405697. The next prime is 745405769. The reversal of 745405741 is 147504547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 555544900 + 189860841 = 23570^2 + 13779^2 .

It is a cyclic number.

It is not a de Polignac number, because 745405741 - 2¹¹ = 745403693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 745405741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745403741) 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, 372702870 + 372702871.

It is an arithmetic number, because the mean of its divisors is an integer number (372702871).

Almost surely, 2^745405741 is an apocalyptic number.

It is an amenable number.

745405741 is a deficient number, since it is larger than the sum of its proper divisors (1).

745405741 is an equidigital number, since it uses as much as digits as its factorization.

745405741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78400, while the sum is 37.

The square root of 745405741 is about 27302.1197162418. The cubic root of 745405741 is about 906.7013125788.

The spelling of 745405741 in words is "seven hundred forty-five million, four hundred five thousand, seven hundred forty-one".