381548383 has 2 divisors, whose sum is σ = 381548384. Its totient is φ = 381548382.

The previous prime is 381548381. The next prime is 381548423. The reversal of 381548383 is 383845183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 381548383 - 2¹ = 381548381 is a prime.

Together with 381548381, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381548381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190774191 + 190774192.

It is an arithmetic number, because the mean of its divisors is an integer number (190774192).

Almost surely, 2^381548383 is an apocalyptic number.

381548383 is a deficient number, since it is larger than the sum of its proper divisors (1).

381548383 is an equidigital number, since it uses as much as digits as its factorization.

381548383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 43.

The square root of 381548383 is about 19533.2635010128. The cubic root of 381548383 is about 725.2980988960.

The spelling of 381548383 in words is "three hundred eighty-one million, five hundred forty-eight thousand, three hundred eighty-three".