195067988 has 6 divisors (see below), whose sum is σ = 341368986. Its totient is φ = 97533992.

The previous prime is 195067981. The next prime is 195067993. The reversal of 195067988 is 889760591.

It can be written as a sum of positive squares in only one way, i.e., 194546704 + 521284 = 13948^2 + 722^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195067981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24383495 + ... + 24383502.

It is an arithmetic number, because the mean of its divisors is an integer number (56894831).

Almost surely, 2^195067988 is an apocalyptic number.

It is an amenable number.

195067988 is a deficient number, since it is larger than the sum of its proper divisors (146300998).

195067988 is a wasteful number, since it uses less digits than its factorization.

195067988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48767001 (or 48766999 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 53.

The square root of 195067988 is about 13966.6741925198. The cubic root of 195067988 is about 579.9563859396.

The spelling of 195067988 in words is "one hundred ninety-five million, sixty-seven thousand, nine hundred eighty-eight".