195357973 has 2 divisors, whose sum is σ = 195357974. Its totient is φ = 195357972.

The previous prime is 195357919. The next prime is 195358061. The reversal of 195357973 is 379753591.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195356529 + 1444 = 13977^2 + 38^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195357973 is a prime.

It is a super-2 number, since 2×195357973² = 76329475229337458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195357913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97678986 + 97678987.

It is an arithmetic number, because the mean of its divisors is an integer number (97678987).

Almost surely, 2^195357973 is an apocalyptic number.

It is an amenable number.

195357973 is a deficient number, since it is larger than the sum of its proper divisors (1).

195357973 is an equidigital number, since it uses as much as digits as its factorization.

195357973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 893025, while the sum is 49.

The square root of 195357973 is about 13977.0516561970. The cubic root of 195357973 is about 580.2436283276.

The spelling of 195357973 in words is "one hundred ninety-five million, three hundred fifty-seven thousand, nine hundred seventy-three".