745360281 has 12 divisors (see below), whose sum is σ = 1094282020. Its totient is φ = 488760480.

The previous prime is 745360267. The next prime is 745360283. The reversal of 745360281 is 182063547.

745360281 is a `hidden beast` number, since 7 + 45 + 3 + 602 + 8 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 63680400 + 681679881 = 7980^2 + 26109^2 .

It is not a de Polignac number, because 745360281 - 2¹¹ = 745358233 is a prime.

It is a super-2 number, since 2×745360281² = 1111123896984797922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745360283) 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, 678286 + ... + 679383.

Almost surely, 2^745360281 is an apocalyptic number.

It is an amenable number.

745360281 is a deficient number, since it is larger than the sum of its proper divisors (348921739).

745360281 is a wasteful number, since it uses less digits than its factorization.

745360281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357736 (or 1357733 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 745360281 is about 27301.2871674579. The cubic root of 745360281 is about 906.6828798974.

The spelling of 745360281 in words is "seven hundred forty-five million, three hundred sixty thousand, two hundred eighty-one".