745680241 has 4 divisors (see below), whose sum is σ = 745742052. Its totient is φ = 745618432.

The previous prime is 745680233. The next prime is 745680253. The reversal of 745680241 is 142086547.

745680241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 142086547 = 31 ⋅4583437.

It can be written as a sum of positive squares in 2 ways, for example, as 622003600 + 123676641 = 24940^2 + 11121^2 .

It is a cyclic number.

It is not a de Polignac number, because 745680241 - 2³ = 745680233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 745680241.

It is not an unprimeable number, because it can be changed into a prime (745680281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6256 + ... + 39121.

It is an arithmetic number, because the mean of its divisors is an integer number (186435513).

Almost surely, 2^745680241 is an apocalyptic number.

It is an amenable number.

745680241 is a deficient number, since it is larger than the sum of its proper divisors (61811).

745680241 is a wasteful number, since it uses less digits than its factorization.

745680241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61810.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 745680241 is about 27307.1463357122. The cubic root of 745680241 is about 906.8125982635.

The spelling of 745680241 in words is "seven hundred forty-five million, six hundred eighty thousand, two hundred forty-one".