188001413 has 2 divisors, whose sum is σ = 188001414. Its totient is φ = 188001412.

The previous prime is 188001389. The next prime is 188001431. The reversal of 188001413 is 314100881.

Together with next prime (188001431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143472484 + 44528929 = 11978^2 + 6673^2 .

It is a cyclic number.

It is not a de Polignac number, because 188001413 - 2⁸ = 188001157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (188001013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94000706 + 94000707.

It is an arithmetic number, because the mean of its divisors is an integer number (94000707).

Almost surely, 2^188001413 is an apocalyptic number.

It is an amenable number.

188001413 is a deficient number, since it is larger than the sum of its proper divisors (1).

188001413 is an equidigital number, since it uses as much as digits as its factorization.

188001413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 188001413 is about 13711.3607275135. The cubic root of 188001413 is about 572.8668668054.

The spelling of 188001413 in words is "one hundred eighty-eight million, one thousand, four hundred thirteen".