381465105 has 16 divisors (see below), whose sum is σ = 697536384. Its totient is φ = 174384000.

The previous prime is 381465059. The next prime is 381465121. The reversal of 381465105 is 501564183.

It is not a de Polignac number, because 381465105 - 2⁹ = 381464593 is a prime.

It is a super-2 number, since 2×381465105² = 291031252665322050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1816396 + ... + 1816605.

It is an arithmetic number, because the mean of its divisors is an integer number (43596024).

Almost surely, 2^381465105 is an apocalyptic number.

381465105 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

381465105 is a deficient number, since it is larger than the sum of its proper divisors (316071279).

381465105 is a wasteful number, since it uses less digits than its factorization.

381465105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3633016.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 381465105 is about 19531.1316876417. The cubic root of 381465105 is about 725.2453264100.

The spelling of 381465105 in words is "three hundred eighty-one million, four hundred sixty-five thousand, one hundred five".