195054943 has 2 divisors, whose sum is σ = 195054944. Its totient is φ = 195054942.

The previous prime is 195054919. The next prime is 195054949. The reversal of 195054943 is 349450591.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195054943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 195054896 and 195054905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195054949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97527471 + 97527472.

It is an arithmetic number, because the mean of its divisors is an integer number (97527472).

Almost surely, 2^195054943 is an apocalyptic number.

195054943 is a deficient number, since it is larger than the sum of its proper divisors (1).

195054943 is an equidigital number, since it uses as much as digits as its factorization.

195054943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 195054943 is about 13966.2071801903. The cubic root of 195054943 is about 579.9434576272.

The spelling of 195054943 in words is "one hundred ninety-five million, fifty-four thousand, nine hundred forty-three".