195272243 has 2 divisors, whose sum is σ = 195272244. Its totient is φ = 195272242.

The previous prime is 195272221. The next prime is 195272269. The reversal of 195272243 is 342272591.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 195272243 - 2¹² = 195268147 is a prime.

It is not a weakly prime, because it can be changed into another prime (195272213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97636121 + 97636122.

It is an arithmetic number, because the mean of its divisors is an integer number (97636122).

Almost surely, 2^195272243 is an apocalyptic number.

195272243 is a deficient number, since it is larger than the sum of its proper divisors (1).

195272243 is an equidigital number, since it uses as much as digits as its factorization.

195272243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 195272243 is about 13973.9845069329. The cubic root of 195272243 is about 580.1587387549.

The spelling of 195272243 in words is "one hundred ninety-five million, two hundred seventy-two thousand, two hundred forty-three".