188472029 has 2 divisors, whose sum is σ = 188472030. Its totient is φ = 188472028.

The previous prime is 188471999. The next prime is 188472041. The reversal of 188472029 is 920274881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122699929 + 65772100 = 11077^2 + 8110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-188472029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (188472059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94236014 + 94236015.

It is an arithmetic number, because the mean of its divisors is an integer number (94236015).

Almost surely, 2^188472029 is an apocalyptic number.

It is an amenable number.

188472029 is a deficient number, since it is larger than the sum of its proper divisors (1).

188472029 is an equidigital number, since it uses as much as digits as its factorization.

188472029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 188472029 is about 13728.5115362154. The cubic root of 188472029 is about 573.3444796448.

The spelling of 188472029 in words is "one hundred eighty-eight million, four hundred seventy-two thousand, twenty-nine".