188868401 has 2 divisors, whose sum is σ = 188868402. Its totient is φ = 188868400.

The previous prime is 188868391. The next prime is 188868443. The reversal of 188868401 is 104868881.

It is a happy number.

188868401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116618401 + 72250000 = 10799^2 + 8500^2 .

It is a cyclic number.

It is not a de Polignac number, because 188868401 - 2¹⁴ = 188852017 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (188868101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94434200 + 94434201.

It is an arithmetic number, because the mean of its divisors is an integer number (94434201).

Almost surely, 2^188868401 is an apocalyptic number.

It is an amenable number.

188868401 is a deficient number, since it is larger than the sum of its proper divisors (1).

188868401 is an equidigital number, since it uses as much as digits as its factorization.

188868401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98304, while the sum is 44.

The square root of 188868401 is about 13742.9400420725. The cubic root of 188868401 is about 573.7461282278.

The spelling of 188868401 in words is "one hundred eighty-eight million, eight hundred sixty-eight thousand, four hundred one".