5081645 has 16 divisors (see below), whose sum is σ = 6480000. Its totient is φ = 3814848.

The previous prime is 5081627. The next prime is 5081647. The reversal of 5081645 is 5461805.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5081645 - 2¹⁸ = 4819501 is a prime.

It is a super-3 number, since 3×5081645³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5081647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13976 + ... + 14334.

It is an arithmetic number, because the mean of its divisors is an integer number (405000).

Almost surely, 2^5081645 is an apocalyptic number.

It is an amenable number.

5081645 is a deficient number, since it is larger than the sum of its proper divisors (1398355).

5081645 is a wasteful number, since it uses less digits than its factorization.

5081645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 5081645 is about 2254.2504297438. The cubic root of 5081645 is about 171.9233140210.

The spelling of 5081645 in words is "five million, eighty-one thousand, six hundred forty-five".