195463540 has 12 divisors (see below), whose sum is σ = 410473476. Its totient is φ = 78185408.

The previous prime is 195463481. The next prime is 195463549. The reversal of 195463540 is 45364591.

195463540 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 2 ways, for example, as 102495376 + 92968164 = 10124^2 + 9642^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 195463540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195463549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4886569 + ... + 4886608.

It is an arithmetic number, because the mean of its divisors is an integer number (34206123).

Almost surely, 2^195463540 is an apocalyptic number.

195463540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195463540 is an abundant number, since it is smaller than the sum of its proper divisors (215009936).

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

195463540 is a wasteful number, since it uses less digits than its factorization.

195463540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9773186 (or 9773184 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 195463540 is about 13980.8275863770. The cubic root of 195463540 is about 580.3481263217.

The spelling of 195463540 in words is "one hundred ninety-five million, four hundred sixty-three thousand, five hundred forty".