381455383 has 4 divisors (see below), whose sum is σ = 381497320. Its totient is φ = 381413448.

The previous prime is 381455359. The next prime is 381455411. The reversal of 381455383 is 383554183.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 381455383 - 2⁵ = 381455351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385455383) 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, 960 + ... + 27637.

It is an arithmetic number, because the mean of its divisors is an integer number (95374330).

Almost surely, 2^381455383 is an apocalyptic number.

381455383 is a deficient number, since it is larger than the sum of its proper divisors (41937).

381455383 is a wasteful number, since it uses less digits than its factorization.

381455383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41936.

The product of its digits is 172800, while the sum is 40.

The square root of 381455383 is about 19530.8828013482. The cubic root of 381455383 is about 725.2391651693.

The spelling of 381455383 in words is "three hundred eighty-one million, four hundred fifty-five thousand, three hundred eighty-three".