381902103 has 48 divisors (see below), whose sum is σ = 617460480. Its totient is φ = 225504000.

The previous prime is 381902099. The next prime is 381902111. The reversal of 381902103 is 301209183.

It is not a de Polignac number, because 381902103 - 2² = 381902099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381902503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 881775 + ... + 882207.

It is an arithmetic number, because the mean of its divisors is an integer number (12863760).

Almost surely, 2^381902103 is an apocalyptic number.

381902103 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

381902103 is a deficient number, since it is larger than the sum of its proper divisors (235558377).

381902103 is a wasteful number, since it uses less digits than its factorization.

381902103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 657 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 381902103 is about 19542.3157020861. The cubic root of 381902103 is about 725.5221624010.

The spelling of 381902103 in words is "three hundred eighty-one million, nine hundred two thousand, one hundred three".