195881455 has 48 divisors (see below), whose sum is σ = 308270592. Its totient is φ = 116740800.

The previous prime is 195881453. The next prime is 195881461. The reversal of 195881455 is 554188591.

It is a happy number.

It is not a de Polignac number, because 195881455 - 2¹ = 195881453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195881453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 96400 + ... + 98410.

It is an arithmetic number, because the mean of its divisors is an integer number (6422304).

Almost surely, 2^195881455 is an apocalyptic number.

195881455 is a deficient number, since it is larger than the sum of its proper divisors (112389137).

195881455 is a wasteful number, since it uses less digits than its factorization.

195881455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068 (or 2057 counting only the distinct ones).

The product of its digits is 288000, while the sum is 46.

The square root of 195881455 is about 13995.7656096407. The cubic root of 195881455 is about 580.7614404688.

The spelling of 195881455 in words is "one hundred ninety-five million, eight hundred eighty-one thousand, four hundred fifty-five".