187275648 has 192 divisors, whose sum is σ = 596516400. Its totient is φ = 51867648.

The previous prime is 187275631. The next prime is 187275703. The reversal of 187275648 is 846572781.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 187275597 and 187275606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 696058 + ... + 696326.

Almost surely, 2^187275648 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 187275648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298258200).

187275648 is an abundant number, since it is smaller than the sum of its proper divisors (409240752).

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

187275648 is a wasteful number, since it uses less digits than its factorization.

187275648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337 (or 318 counting only the distinct ones).

The product of its digits is 752640, while the sum is 48.

The square root of 187275648 is about 13684.8693088389. The cubic root of 187275648 is about 572.1287466726.

The spelling of 187275648 in words is "one hundred eighty-seven million, two hundred seventy-five thousand, six hundred forty-eight".