45650168281 has 3 divisors (see below), whose sum is σ = 45650381941. Its totient is φ = 45649954622.

The previous prime is 45650168273. The next prime is 45650168327. The reversal of 45650168281 is 18286105654.

The square root of 45650168281 is 213659.

It is a perfect power (a square), and thus also a powerful number.

45650168281 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.

It is not a de Polignac number, because 45650168281 - 2³ = 45650168273 is a prime.

It is a super-2 number, since 2×45650168281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45650168231) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 106830 + ... + 320488.

Almost surely, 2^45650168281 is an apocalyptic number.

45650168281 is the 213659-th square number.

45650168281 is the 106830-th centered octagonal number.

It is an amenable number.

45650168281 is a deficient number, since it is larger than the sum of its proper divisors (213660).

45650168281 is an frugal number, since it uses more digits than its factorization.

45650168281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427318 (or 213659 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 46.

The spelling of 45650168281 in words is "forty-five billion, six hundred fifty million, one hundred sixty-eight thousand, two hundred eighty-one".