381048599 has 4 divisors (see below), whose sum is σ = 389156064. Its totient is φ = 372941136.

The previous prime is 381048593. The next prime is 381048611. The reversal of 381048599 is 995840183.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 381048599 - 2²⁸ = 112613143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 8107417 = 381048599 / (3 + 8 + 1 + 0 + 4 + 8 + 5 + 9 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381048593) 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 3 ways as a sum of consecutive naturals, for example, 4053662 + ... + 4053755.

It is an arithmetic number, because the mean of its divisors is an integer number (97289016).

Almost surely, 2^381048599 is an apocalyptic number.

381048599 is a deficient number, since it is larger than the sum of its proper divisors (8107465).

381048599 is an equidigital number, since it uses as much as digits as its factorization.

381048599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8107464.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 381048599 is about 19520.4661573437. The cubic root of 381048599 is about 724.9812751406.

The spelling of 381048599 in words is "three hundred eighty-one million, forty-eight thousand, five hundred ninety-nine".