5281945 has 8 divisors (see below), whose sum is σ = 6433344. Its totient is φ = 4162224.

The previous prime is 5281937. The next prime is 5281949. The reversal of 5281945 is 5491825.

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 5281945 - 2³ = 5281937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5281945.

It is not an unprimeable number, because it can be changed into a prime (5281949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7549 + ... + 8218.

It is an arithmetic number, because the mean of its divisors is an integer number (804168).

Almost surely, 2^5281945 is an apocalyptic number.

It is an amenable number.

5281945 is a deficient number, since it is larger than the sum of its proper divisors (1151399).

5281945 is a wasteful number, since it uses less digits than its factorization.

5281945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15839.

The product of its digits is 14400, while the sum is 34.

The square root of 5281945 is about 2298.2482459473. The cubic root of 5281945 is about 174.1531329069.

It can be divided in two parts, 5281 and 945, that added together give a palindrome (6226).

The spelling of 5281945 in words is "five million, two hundred eighty-one thousand, nine hundred forty-five".