381346541 has 4 divisors (see below), whose sum is σ = 381386112. Its totient is φ = 381306972.

The previous prime is 381346529. The next prime is 381346561. The reversal of 381346541 is 145643183.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 145643183 = 7 ⋅20806169.

It is a cyclic number.

It is not a de Polignac number, because 381346541 - 2⁶ = 381346477 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 (381346561) 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, 5126 + ... + 28088.

It is an arithmetic number, because the mean of its divisors is an integer number (95346528).

Almost surely, 2^381346541 is an apocalyptic number.

It is an amenable number.

381346541 is a deficient number, since it is larger than the sum of its proper divisors (39571).

381346541 is a wasteful number, since it uses less digits than its factorization.

381346541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39570.

The product of its digits is 34560, while the sum is 35.

The square root of 381346541 is about 19528.0961949700. The cubic root of 381346541 is about 725.1701802643.

The spelling of 381346541 in words is "three hundred eighty-one million, three hundred forty-six thousand, five hundred forty-one".