188489453 has 2 divisors, whose sum is σ = 188489454. Its totient is φ = 188489452.

The previous prime is 188489447. The next prime is 188489459. The reversal of 188489453 is 354984881.

It is a balanced prime because it is at equal distance from previous prime (188489447) and next prime (188489459).

It can be written as a sum of positive squares in only one way, i.e., 125731369 + 62758084 = 11213^2 + 7922^2 .

It is a cyclic number.

It is not a de Polignac number, because 188489453 - 2¹⁴ = 188473069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (188489459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94244726 + 94244727.

It is an arithmetic number, because the mean of its divisors is an integer number (94244727).

Almost surely, 2^188489453 is an apocalyptic number.

It is an amenable number.

188489453 is a deficient number, since it is larger than the sum of its proper divisors (1).

188489453 is an equidigital number, since it uses as much as digits as its factorization.

188489453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1105920, while the sum is 50.

The square root of 188489453 is about 13729.1461132876. The cubic root of 188489453 is about 573.3621474236.

The spelling of 188489453 in words is "one hundred eighty-eight million, four hundred eighty-nine thousand, four hundred fifty-three".