45731447 has 8 divisors (see below), whose sum is σ = 46230912. Its totient is φ = 45235000.

The previous prime is 45731419. The next prime is 45731449. The reversal of 45731447 is 74413754.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45731447 - 2¹⁰ = 45730423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45731449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41372 + ... + 42462.

It is an arithmetic number, because the mean of its divisors is an integer number (5778864).

Almost surely, 2^45731447 is an apocalyptic number.

45731447 is a deficient number, since it is larger than the sum of its proper divisors (499465).

45731447 is a wasteful number, since it uses less digits than its factorization.

45731447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509.

The product of its digits is 47040, while the sum is 35.

The square root of 45731447 is about 6762.5030129383. The cubic root of 45731447 is about 357.6061516649.

The spelling of 45731447 in words is "forty-five million, seven hundred thirty-one thousand, four hundred forty-seven".