195332978 has 4 divisors (see below), whose sum is σ = 292999470. Its totient is φ = 97666488.

The previous prime is 195332959. The next prime is 195332981. The reversal of 195332978 is 879233591.

195332978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 115713049 + 79619929 = 10757^2 + 8923^2 .

It is a plaindrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48833243 + ... + 48833246.

Almost surely, 2^195332978 is an apocalyptic number.

195332978 is a deficient number, since it is larger than the sum of its proper divisors (97666492).

195332978 is an equidigital number, since it uses as much as digits as its factorization.

195332978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97666491.

The product of its digits is 408240, while the sum is 47.

The square root of 195332978 is about 13976.1574833715. The cubic root of 195332978 is about 580.2188809236.

The spelling of 195332978 in words is "one hundred ninety-five million, three hundred thirty-two thousand, nine hundred seventy-eight".