195157378 has 16 divisors (see below), whose sum is σ = 316274616. Its totient is φ = 89781120.

The previous prime is 195157367. The next prime is 195157387. The reversal of 195157378 is 873751591.

195157378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11202409 + 183954969 = 3347^2 + 13563^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3853 + ... + 20128.

Almost surely, 2^195157378 is an apocalyptic number.

195157378 is a deficient number, since it is larger than the sum of its proper divisors (121117238).

195157378 is a wasteful number, since it uses less digits than its factorization.

195157378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24309.

The product of its digits is 264600, while the sum is 46.

The square root of 195157378 is about 13969.8739435973. The cubic root of 195157378 is about 580.0449608428.

The spelling of 195157378 in words is "one hundred ninety-five million, one hundred fifty-seven thousand, three hundred seventy-eight".