387161136 has 120 divisors (see below), whose sum is σ = 1135396080. Its totient is φ = 122992128.

The previous prime is 387161123. The next prime is 387161141. The reversal of 387161136 is 631161783.

387161136 is a `hidden beast` number, since 3 + 8 + 7 + 1 + 611 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 387161136.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 346050 + ... + 347166.

It is an arithmetic number, because the mean of its divisors is an integer number (9461634).

Almost surely, 2^387161136 is an apocalyptic number.

387161136 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 387161136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (567698040).

387161136 is an abundant number, since it is smaller than the sum of its proper divisors (748234944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

387161136 is a wasteful number, since it uses less digits than its factorization.

387161136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243 (or 1234 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 387161136 is about 19676.4106482864. The cubic root of 387161136 is about 728.8372908784.

The spelling of 387161136 in words is "three hundred eighty-seven million, one hundred sixty-one thousand, one hundred thirty-six".