5381491 has 2 divisors, whose sum is σ = 5381492. Its totient is φ = 5381490.

The previous prime is 5381479. The next prime is 5381521. The reversal of 5381491 is 1941835.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5381491 - 2⁵ = 5381459 is a prime.

It is not a weakly prime, because it can be changed into another prime (5381891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2690745 + 2690746.

It is an arithmetic number, because the mean of its divisors is an integer number (2690746).

Almost surely, 2^5381491 is an apocalyptic number.

5381491 is a deficient number, since it is larger than the sum of its proper divisors (1).

5381491 is an equidigital number, since it uses as much as digits as its factorization.

5381491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 31.

The square root of 5381491 is about 2319.8040865556. The cubic root of 5381491 is about 175.2403880082.

The spelling of 5381491 in words is "five million, three hundred eighty-one thousand, four hundred ninety-one".