195231293 has 8 divisors (see below), whose sum is σ = 198781176. Its totient is φ = 191692800.

The previous prime is 195231287. The next prime is 195231301. The reversal of 195231293 is 392132591.

It can be written as a sum of positive squares in 4 ways, for example, as 11710084 + 183521209 = 3422^2 + 13547^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 195231293 - 2¹⁶ = 195165757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195231263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36605 + ... + 41597.

It is an arithmetic number, because the mean of its divisors is an integer number (24847647).

Almost surely, 2^195231293 is an apocalyptic number.

It is an amenable number.

195231293 is a deficient number, since it is larger than the sum of its proper divisors (3549883).

195231293 is an equidigital number, since it uses as much as digits as its factorization.

195231293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5695.

The product of its digits is 14580, while the sum is 35.

The square root of 195231293 is about 13972.5192073584. The cubic root of 195231293 is about 580.1181814269.

The spelling of 195231293 in words is "one hundred ninety-five million, two hundred thirty-one thousand, two hundred ninety-three".