381601149 has 32 divisors (see below), whose sum is σ = 546510720. Its totient is φ = 236141568.

The previous prime is 381601141. The next prime is 381601229. The reversal of 381601149 is 941106183.

It is not a de Polignac number, because 381601149 - 2³ = 381601141 is a prime.

It is a super-3 number, since 3×381601149³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381601141) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1219017 + ... + 1219329.

It is an arithmetic number, because the mean of its divisors is an integer number (17078460).

Almost surely, 2^381601149 is an apocalyptic number.

It is an amenable number.

381601149 is a deficient number, since it is larger than the sum of its proper divisors (164909571).

381601149 is a wasteful number, since it uses less digits than its factorization.

381601149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 381601149 is about 19534.6141246762. The cubic root of 381601149 is about 725.3315322403.

The spelling of 381601149 in words is "three hundred eighty-one million, six hundred one thousand, one hundred forty-nine".