745108281 has 32 divisors (see below), whose sum is σ = 1178803200. Its totient is φ = 464123520.

The previous prime is 745108279. The next prime is 745108289. The reversal of 745108281 is 182801547.

It is not a de Polignac number, because 745108281 - 2¹ = 745108279 is a prime.

It is a super-2 number, since 2×745108281² = 1110372700829549922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (745108289) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8925 + ... + 39621.

It is an arithmetic number, because the mean of its divisors is an integer number (36837600).

Almost surely, 2^745108281 is an apocalyptic number.

It is an amenable number.

745108281 is a deficient number, since it is larger than the sum of its proper divisors (433694919).

745108281 is a wasteful number, since it uses less digits than its factorization.

745108281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30766 (or 30760 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 745108281 is about 27296.6716102898. The cubic root of 745108281 is about 906.5806877782.

The spelling of 745108281 in words is "seven hundred forty-five million, one hundred eight thousand, two hundred eighty-one".