195452387 has 6 divisors (see below), whose sum is σ = 211643892. Its totient is φ = 180417432.

The previous prime is 195452377. The next prime is 195452407. The reversal of 195452387 is 783254591.

It is not a de Polignac number, because 195452387 - 2²² = 191258083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195452347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 578093 + ... + 578430.

It is an arithmetic number, because the mean of its divisors is an integer number (35273982).

Almost surely, 2^195452387 is an apocalyptic number.

195452387 is a deficient number, since it is larger than the sum of its proper divisors (16191505).

195452387 is a wasteful number, since it uses less digits than its factorization.

195452387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156549 (or 1156536 counting only the distinct ones).

The product of its digits is 302400, while the sum is 44.

The square root of 195452387 is about 13980.4287130259. The cubic root of 195452387 is about 580.3370880384.

The spelling of 195452387 in words is "one hundred ninety-five million, four hundred fifty-two thousand, three hundred eighty-seven".