188551441 has 12 divisors (see below), whose sum is σ = 206098992. Its totient is φ = 172404336.

The previous prime is 188551409. The next prime is 188551453. The reversal of 188551441 is 144155881.

It is not a de Polignac number, because 188551441 - 2⁵ = 188551409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 188551441.

It is not an unprimeable number, because it can be changed into a prime (188551241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12870 + ... + 23296.

It is an arithmetic number, because the mean of its divisors is an integer number (17174916).

Almost surely, 2^188551441 is an apocalyptic number.

It is an amenable number.

188551441 is a deficient number, since it is larger than the sum of its proper divisors (17547551).

188551441 is a wasteful number, since it uses less digits than its factorization.

188551441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10560 (or 10547 counting only the distinct ones).

The product of its digits is 25600, while the sum is 37.

The square root of 188551441 is about 13731.4034606809. The cubic root of 188551441 is about 573.4249938708.

The spelling of 188551441 in words is "one hundred eighty-eight million, five hundred fifty-one thousand, four hundred forty-one".