381216102 has 16 divisors (see below), whose sum is σ = 763671360. Its totient is φ = 126865512.

The previous prime is 381216097. The next prime is 381216137. The reversal of 381216102 is 201612183.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47608 + ... + 55035.

It is an arithmetic number, because the mean of its divisors is an integer number (47729460).

Almost surely, 2^381216102 is an apocalyptic number.

381216102 is an abundant number, since it is smaller than the sum of its proper divisors (382455258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

381216102 is a wasteful number, since it uses less digits than its factorization.

381216102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103267.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 381216102 is about 19524.7561316396. The cubic root of 381216102 is about 725.0874897192.

Adding to 381216102 its reverse (201612183), we get a palindrome (582828285).

The spelling of 381216102 in words is "three hundred eighty-one million, two hundred sixteen thousand, one hundred two".