45045331 has 4 divisors (see below), whose sum is σ = 45247552. Its totient is φ = 44843112.

The previous prime is 45045281. The next prime is 45045337. The reversal of 45045331 is 13354054.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45045331 - 2⁹ = 45044819 is a prime.

It is a super-2 number, since 2×45045331² = 4058163689799122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45045296 and 45045305.

It is not an unprimeable number, because it can be changed into a prime (45045337) 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, 100776 + ... + 101221.

It is an arithmetic number, because the mean of its divisors is an integer number (11311888).

Almost surely, 2^45045331 is an apocalyptic number.

45045331 is a deficient number, since it is larger than the sum of its proper divisors (202221).

45045331 is a wasteful number, since it uses less digits than its factorization.

45045331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202220.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 45045331 is about 6711.5818552708. The cubic root of 45045331 is about 355.8087255746.

Adding to 45045331 its reverse (13354054), we get a palindrome (58399385).

The spelling of 45045331 in words is "forty-five million, forty-five thousand, three hundred thirty-one".