187285056 has 168 divisors, whose sum is σ = 610855776. Its totient is φ = 50319360.

The previous prime is 187285051. The next prime is 187285061. The reversal of 187285056 is 650582781.

It is an interprime number because it is at equal distance from previous prime (187285051) and next prime (187285061).

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 187284999 and 187285017.

It is not an unprimeable number, because it can be changed into a prime (187285051) 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, 159351 + ... + 160521.

Almost surely, 2^187285056 is an apocalyptic number.

187285056 is a gapful number since it is divisible by the number (16) 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 187285056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305427888).

187285056 is an abundant number, since it is smaller than the sum of its proper divisors (423570720).

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

187285056 is a wasteful number, since it uses less digits than its factorization.

187285056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217 (or 1200 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 42.

The square root of 187285056 is about 13685.2130418200. The cubic root of 187285056 is about 572.1383270196.

The spelling of 187285056 in words is "one hundred eighty-seven million, two hundred eighty-five thousand, fifty-six".