195387229 has 4 divisors (see below), whose sum is σ = 197741376. Its totient is φ = 193033084.

The previous prime is 195387221. The next prime is 195387259. The reversal of 195387229 is 922783591.

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 a cyclic number.

It is not a de Polignac number, because 195387229 - 2³ = 195387221 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 (195387221) 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, 1176949 + ... + 1177114.

It is an arithmetic number, because the mean of its divisors is an integer number (49435344).

Almost surely, 2^195387229 is an apocalyptic number.

It is an amenable number.

195387229 is a deficient number, since it is larger than the sum of its proper divisors (2354147).

195387229 is an equidigital number, since it uses as much as digits as its factorization.

195387229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354146.

The product of its digits is 272160, while the sum is 46.

The square root of 195387229 is about 13978.0981896680. The cubic root of 195387229 is about 580.2725918418.

The spelling of 195387229 in words is "one hundred ninety-five million, three hundred eighty-seven thousand, two hundred twenty-nine".