187643056 has 20 divisors (see below), whose sum is σ = 372014632. Its totient is φ = 91639296.

The previous prime is 187643051. The next prime is 187643077. The reversal of 187643056 is 650346781.

It is a happy number.

187643056 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×187643056³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (187643051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135681 + ... + 137056.

Almost surely, 2^187643056 is an apocalyptic number.

187643056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

187643056 is a deficient number, since it is larger than the sum of its proper divisors (184371576).

187643056 is a wasteful number, since it uses less digits than its factorization.

187643056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272788 (or 272782 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 187643056 is about 13698.2866081857. The cubic root of 187643056 is about 572.5026471531.

The spelling of 187643056 in words is "one hundred eighty-seven million, six hundred forty-three thousand, fifty-six".