195307293 has 4 divisors (see below), whose sum is σ = 260409728. Its totient is φ = 130204860.

The previous prime is 195307267. The next prime is 195307303. The reversal of 195307293 is 392703591.

195307293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 195307293 - 2²⁶ = 128198429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195307253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32551213 + ... + 32551218.

It is an arithmetic number, because the mean of its divisors is an integer number (65102432).

Almost surely, 2^195307293 is an apocalyptic number.

It is an amenable number.

195307293 is a deficient number, since it is larger than the sum of its proper divisors (65102435).

195307293 is an equidigital number, since it uses as much as digits as its factorization.

195307293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65102434.

The product of its (nonzero) digits is 51030, while the sum is 39.

The square root of 195307293 is about 13975.2385668367. The cubic root of 195307293 is about 580.1934481551.

The spelling of 195307293 in words is "one hundred ninety-five million, three hundred seven thousand, two hundred ninety-three".