5219381 has 2 divisors, whose sum is σ = 5219382. Its totient is φ = 5219380.

The previous prime is 5219371. The next prime is 5219393. The reversal of 5219381 is 1839125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2788900 + 2430481 = 1670^2 + 1559^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5219381 is a prime.

It is a super-2 number, since 2×5219381² = 54483876046322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p₃₆₂₆₇₅ and since 5219381 and 362675 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5219351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2609690 + 2609691.

It is an arithmetic number, because the mean of its divisors is an integer number (2609691).

Almost surely, 2^5219381 is an apocalyptic number.

It is an amenable number.

5219381 is a deficient number, since it is larger than the sum of its proper divisors (1).

5219381 is an equidigital number, since it uses as much as digits as its factorization.

5219381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 29.

The square root of 5219381 is about 2284.5964632731. The cubic root of 5219381 is about 173.4627924210.

It can be divided in two parts, 521 and 9381, that multiplied together give a triangular number (4887501 = T₃₁₂₆).

The spelling of 5219381 in words is "five million, two hundred nineteen thousand, three hundred eighty-one".