195151388 has 6 divisors (see below), whose sum is σ = 341514936. Its totient is φ = 97575692.

The previous prime is 195151373. The next prime is 195151391. The reversal of 195151388 is 883151591.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24393920 + ... + 24393927.

It is an arithmetic number, because the mean of its divisors is an integer number (56919156).

Almost surely, 2^195151388 is an apocalyptic number.

It is an amenable number.

195151388 is a deficient number, since it is larger than the sum of its proper divisors (146363548).

195151388 is a wasteful number, since it uses less digits than its factorization.

195151388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48787851 (or 48787849 counting only the distinct ones).

The product of its digits is 43200, while the sum is 41.

The square root of 195151388 is about 13969.6595520435. The cubic root of 195151388 is about 580.0390263078.

The spelling of 195151388 in words is "one hundred ninety-five million, one hundred fifty-one thousand, three hundred eighty-eight".