131284000 has 96 divisors (see below), whose sum is σ = 336825216. Its totient is φ = 50195200.

The previous prime is 131283973. The next prime is 131284033. The reversal of 131284000 is 482131.

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 15 ways as a sum of consecutive naturals, for example, 91287 + ... + 92713.

It is an arithmetic number, because the mean of its divisors is an integer number (3508596).

Almost surely, 2^131284000 is an apocalyptic number.

131284000 is a gapful number since it is divisible by the number (10) 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 131284000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168412608).

131284000 is an abundant number, since it is smaller than the sum of its proper divisors (205541216).

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

131284000 is a wasteful number, since it uses less digits than its factorization.

131284000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475 (or 1457 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 131284000 is about 11457.9230229566. The cubic root of 131284000 is about 508.2420571281.

The spelling of 131284000 in words is "one hundred thirty-one million, two hundred eighty-four thousand".