188814953 has 2 divisors, whose sum is σ = 188814954. Its totient is φ = 188814952.

The previous prime is 188814949. The next prime is 188814961. The reversal of 188814953 is 359418881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178810384 + 10004569 = 13372^2 + 3163^2 .

It is a cyclic number.

It is not a de Polignac number, because 188814953 - 2² = 188814949 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 188814898 and 188814907.

It is not a weakly prime, because it can be changed into another prime (188814943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94407476 + 94407477.

It is an arithmetic number, because the mean of its divisors is an integer number (94407477).

Almost surely, 2^188814953 is an apocalyptic number.

It is an amenable number.

188814953 is a deficient number, since it is larger than the sum of its proper divisors (1).

188814953 is an equidigital number, since it uses as much as digits as its factorization.

188814953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 47.

The square root of 188814953 is about 13740.9953424051. The cubic root of 188814953 is about 573.6920015166.

The spelling of 188814953 in words is "one hundred eighty-eight million, eight hundred fourteen thousand, nine hundred fifty-three".