5041981 has 4 divisors (see below), whose sum is σ = 5762272. Its totient is φ = 4321692.

The previous prime is 5041937. The next prime is 5041999. The reversal of 5041981 is 1891405.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5041981 - 2¹¹ = 5039933 is a prime.

It is a super-2 number, since 2×5041981² = 50843144808722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5041901) 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, 360135 + ... + 360148.

It is an arithmetic number, because the mean of its divisors is an integer number (1440568).

Almost surely, 2^5041981 is an apocalyptic number.

It is an amenable number.

5041981 is a deficient number, since it is larger than the sum of its proper divisors (720291).

5041981 is an equidigital number, since it uses as much as digits as its factorization.

5041981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720290.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 5041981 is about 2245.4355924853. The cubic root of 5041981 is about 171.4748381403.

It can be divided in two parts, 504 and 1981, that added together give a triangular number (2485 = T₇₀).

The spelling of 5041981 in words is "five million, forty-one thousand, nine hundred eighty-one".