194556953 has 2 divisors, whose sum is σ = 194556954. Its totient is φ = 194556952.

The previous prime is 194556949. The next prime is 194557021. The reversal of 194556953 is 359655491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118309129 + 76247824 = 10877^2 + 8732^2 .

It is a cyclic number.

It is not a de Polignac number, because 194556953 - 2² = 194556949 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 194556898 and 194556907.

It is not a weakly prime, because it can be changed into another prime (194556913) 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, 97278476 + 97278477.

It is an arithmetic number, because the mean of its divisors is an integer number (97278477).

Almost surely, 2^194556953 is an apocalyptic number.

It is an amenable number.

194556953 is a deficient number, since it is larger than the sum of its proper divisors (1).

194556953 is an equidigital number, since it uses as much as digits as its factorization.

194556953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 729000, while the sum is 47.

The square root of 194556953 is about 13948.3673955055. The cubic root of 194556953 is about 579.4494905284.

The spelling of 194556953 in words is "one hundred ninety-four million, five hundred fifty-six thousand, nine hundred fifty-three".