381765103 has 4 divisors (see below), whose sum is σ = 381887280. Its totient is φ = 381642928.

The previous prime is 381765101. The next prime is 381765113. The reversal of 381765103 is 301567183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301567183 = 19 ⋅15871957.

It is a cyclic number.

It is not a de Polignac number, because 381765103 - 2¹ = 381765101 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 (381765101) 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, 56275 + ... + 62692.

It is an arithmetic number, because the mean of its divisors is an integer number (95471820).

Almost surely, 2^381765103 is an apocalyptic number.

381765103 is a deficient number, since it is larger than the sum of its proper divisors (122177).

381765103 is a wasteful number, since it uses less digits than its factorization.

381765103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122176.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 381765103 is about 19538.8101736006. The cubic root of 381765103 is about 725.4353963395.

The spelling of 381765103 in words is "three hundred eighty-one million, seven hundred sixty-five thousand, one hundred three".