381124305 has 16 divisors (see below), whose sum is σ = 677554560. Its totient is φ = 203266224.

The previous prime is 381124291. The next prime is 381124319. The reversal of 381124305 is 503421183.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (381124291) and next prime (381124319).

It is not a de Polignac number, because 381124305 - 2¹¹ = 381122257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1411437 + ... + 1411706.

It is an arithmetic number, because the mean of its divisors is an integer number (42347160).

Almost surely, 2^381124305 is an apocalyptic number.

It is an amenable number.

381124305 is a deficient number, since it is larger than the sum of its proper divisors (296430255).

381124305 is a wasteful number, since it uses less digits than its factorization.

381124305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2823157 (or 2823151 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 381124305 is about 19522.4052053019. The cubic root of 381124305 is about 725.0292845880.

Adding to 381124305 its reverse (503421183), we get a palindrome (884545488).

The spelling of 381124305 in words is "three hundred eighty-one million, one hundred twenty-four thousand, three hundred five".