5141981 has 4 divisors (see below), whose sum is σ = 5537532. Its totient is φ = 4746432.

The previous prime is 5141977. The next prime is 5141987. The reversal of 5141981 is 1891415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1891415 = 5 ⋅378283.

It can be written as a sum of positive squares in 2 ways, for example, as 902500 + 4239481 = 950^2 + 2059^2 .

It is a cyclic number.

It is not a de Polignac number, because 5141981 - 2² = 5141977 is a prime.

It is a super-2 number, since 2×5141981² = 52879937208722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5141987) 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, 197756 + ... + 197781.

It is an arithmetic number, because the mean of its divisors is an integer number (1384383).

Almost surely, 2^5141981 is an apocalyptic number.

It is an amenable number.

5141981 is a deficient number, since it is larger than the sum of its proper divisors (395551).

5141981 is a wasteful number, since it uses less digits than its factorization.

5141981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395550.

The product of its digits is 1440, while the sum is 29.

The square root of 5141981 is about 2267.5936584847. The cubic root of 5141981 is about 172.6010721826.

The spelling of 5141981 in words is "five million, one hundred forty-one thousand, nine hundred eighty-one".