5018381 has 2 divisors, whose sum is σ = 5018382. Its totient is φ = 5018380.

The previous prime is 5018371. The next prime is 5018399. The reversal of 5018381 is 1838105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3455881 + 1562500 = 1859^2 + 1250^2 .

It is a cyclic number.

It is not a de Polignac number, because 5018381 - 2²² = 824077 is a prime.

It is a super-2 number, since 2×5018381² = 50368295722322, which contains 22 as substring.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 5018381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5018341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2509190 + 2509191.

It is an arithmetic number, because the mean of its divisors is an integer number (2509191).

Almost surely, 2^5018381 is an apocalyptic number.

It is an amenable number.

5018381 is a deficient number, since it is larger than the sum of its proper divisors (1).

5018381 is an equidigital number, since it uses as much as digits as its factorization.

5018381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 5018381 is about 2240.1743235739. The cubic root of 5018381 is about 171.2068788724.

The spelling of 5018381 in words is "five million, eighteen thousand, three hundred eighty-one".