381055207 has 8 divisors (see below), whose sum is σ = 419911184. Its totient is φ = 343562688.

The previous prime is 381055151. The next prime is 381055223. The reversal of 381055207 is 702550183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381055207 - 2¹¹ = 381053159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381055247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340278 + ... + 341395.

It is an arithmetic number, because the mean of its divisors is an integer number (52488898).

Almost surely, 2^381055207 is an apocalyptic number.

381055207 is a deficient number, since it is larger than the sum of its proper divisors (38855977).

381055207 is a wasteful number, since it uses less digits than its factorization.

381055207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681729.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 381055207 is about 19520.6354148629. The cubic root of 381055207 is about 724.9854658997.

The spelling of 381055207 in words is "three hundred eighty-one million, fifty-five thousand, two hundred seven".