5081961 has 4 divisors (see below), whose sum is σ = 6775952. Its totient is φ = 3387972.

The previous prime is 5081959. The next prime is 5081981. The reversal of 5081961 is 1691805.

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 not a de Polignac number, because 5081961 - 2¹ = 5081959 is a prime.

It is a D-number.

It is a Duffinian number.

5081961 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5081941) 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, 846991 + ... + 846996.

It is an arithmetic number, because the mean of its divisors is an integer number (1693988).

Almost surely, 2^5081961 is an apocalyptic number.

It is an amenable number.

5081961 is a deficient number, since it is larger than the sum of its proper divisors (1693991).

5081961 is a wasteful number, since it uses less digits than its factorization.

5081961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693990.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 5081961 is about 2254.3205184711. The cubic root of 5081961 is about 171.9268776073.

The spelling of 5081961 in words is "five million, eighty-one thousand, nine hundred sixty-one".