195371478 has 24 divisors (see below), whose sum is σ = 433631016. Its totient is φ = 63535200.

The previous prime is 195371431. The next prime is 195371537. The reversal of 195371478 is 874173591.

195371478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131628 + ... + 133103.

It is an arithmetic number, because the mean of its divisors is an integer number (18067959).

Almost surely, 2^195371478 is an apocalyptic number.

195371478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

195371478 is an abundant number, since it is smaller than the sum of its proper divisors (238259538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

195371478 is a wasteful number, since it uses less digits than its factorization.

195371478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264780 (or 264777 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 195371478 is about 13977.5347611802. The cubic root of 195371478 is about 580.2569986712.

The spelling of 195371478 in words is "one hundred ninety-five million, three hundred seventy-one thousand, four hundred seventy-eight".