745250643 has 12 divisors (see below), whose sum is σ = 1079364000. Its totient is φ = 495499536.

The previous prime is 745250617. The next prime is 745250647. The reversal of 745250643 is 346052547.

745250643 is a `hidden beast` number, since 7 + 4 + 5 + 2 + 5 + 0 + 643 = 666.

It is not a de Polignac number, because 745250643 - 2¹³ = 745242451 is a prime.

It is a super-3 number, since 3×745250643³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 745250598 and 745250607.

It is not an unprimeable number, because it can be changed into a prime (745250647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107643 + ... + 114356.

It is an arithmetic number, because the mean of its divisors is an integer number (89947000).

Almost surely, 2^745250643 is an apocalyptic number.

745250643 is a deficient number, since it is larger than the sum of its proper divisors (334113357).

745250643 is a wasteful number, since it uses less digits than its factorization.

745250643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222378 (or 222375 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The square root of 745250643 is about 27299.2791663077. The cubic root of 745250643 is about 906.6384218572.

The spelling of 745250643 in words is "seven hundred forty-five million, two hundred fifty thousand, six hundred forty-three".