188541049 has 4 divisors (see below), whose sum is σ = 191736720. Its totient is φ = 185345380.

The previous prime is 188541029. The next prime is 188541079. The reversal of 188541049 is 940145881.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 188541049 - 2²⁵ = 154986617 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (188541019) 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, 1597747 + ... + 1597864.

It is an arithmetic number, because the mean of its divisors is an integer number (47934180).

Almost surely, 2^188541049 is an apocalyptic number.

It is an amenable number.

188541049 is a deficient number, since it is larger than the sum of its proper divisors (3195671).

188541049 is an equidigital number, since it uses as much as digits as its factorization.

188541049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3195670.

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 188541049 is about 13731.0250527774. The cubic root of 188541049 is about 573.4144589173.

The spelling of 188541049 in words is "one hundred eighty-eight million, five hundred forty-one thousand, forty-nine".