487169136 has 120 divisors (see below), whose sum is σ = 1468499760. Its totient is φ = 150202368.

The previous prime is 487169131. The next prime is 487169143. The reversal of 487169136 is 631961784.

It is a happy number.

487169136 is a `hidden beast` number, since 487 + 169 + 1 + 3 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 487169091 and 487169100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487169131) by changing a digit.

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, 142746 + ... + 146118.

It is an arithmetic number, because the mean of its divisors is an integer number (12237498).

Almost surely, 2^487169136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 487169136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (734249880).

487169136 is an abundant number, since it is smaller than the sum of its proper divisors (981330624).

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

487169136 is a wasteful number, since it uses less digits than its factorization.

487169136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3463 (or 3454 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 487169136 is about 22071.9082999182. The cubic root of 487169136 is about 786.8523667065.

The spelling of 487169136 in words is "four hundred eighty-seven million, one hundred sixty-nine thousand, one hundred thirty-six".