381225705 has 32 divisors (see below), whose sum is σ = 698041344. Its totient is φ = 174038976.

The previous prime is 381225703. The next prime is 381225773. The reversal of 381225705 is 507522183.

It is not a de Polignac number, because 381225705 - 2¹ = 381225703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381225701) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93234 + ... + 97236.

It is an arithmetic number, because the mean of its divisors is an integer number (21813792).

Almost surely, 2^381225705 is an apocalyptic number.

381225705 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

381225705 is a deficient number, since it is larger than the sum of its proper divisors (316815639).

381225705 is a wasteful number, since it uses less digits than its factorization.

381225705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4925.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 381225705 is about 19525.0020486555. The cubic root of 381225705 is about 725.0935780915.

Adding to 381225705 its reverse (507522183), we get a palindrome (888747888).

The spelling of 381225705 in words is "three hundred eighty-one million, two hundred twenty-five thousand, seven hundred five".