188870049 has 21 divisors (see below), whose sum is σ = 283732963. Its totient is φ = 125665992.

The previous prime is 188870029. The next prime is 188870057. The reversal of 188870049 is 940078881.

The square root of 188870049 is 13743.

It is a perfect power (a square), and thus also a powerful number.

188870049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 153586449 + 35283600 = 12393^2 + 5940^2 .

It is not a de Polignac number, because 188870049 - 2²⁵ = 155315617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 188869986 and 188870013.

It is not an unprimeable number, because it can be changed into a prime (188870029) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 370807 + ... + 371315.

Almost surely, 2^188870049 is an apocalyptic number.

188870049 is the 13743-rd square number.

188870049 is the 6872-nd centered octagonal number.

It is an amenable number.

188870049 is a deficient number, since it is larger than the sum of its proper divisors (94862914).

188870049 is an frugal number, since it uses more digits than its factorization.

188870049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The cubic root of 188870049 is about 573.7477969927.

The spelling of 188870049 in words is "one hundred eighty-eight million, eight hundred seventy thousand, forty-nine".