381600139 has 8 divisors (see below), whose sum is σ = 404464320. Its totient is φ = 358782336.

The previous prime is 381600137. The next prime is 381600157. The reversal of 381600139 is 931006183.

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 381600139 - 2¹ = 381600137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 381600139.

It is not an unprimeable number, because it can be changed into a prime (381600133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6142 + ... + 28300.

It is an arithmetic number, because the mean of its divisors is an integer number (50558040).

Almost surely, 2^381600139 is an apocalyptic number.

381600139 is a deficient number, since it is larger than the sum of its proper divisors (22864181).

381600139 is a wasteful number, since it uses less digits than its factorization.

381600139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23189.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 381600139 is about 19534.5882731119. The cubic root of 381600139 is about 725.3308923178.

The spelling of 381600139 in words is "three hundred eighty-one million, six hundred thousand, one hundred thirty-nine".