195121545369 has 8 divisors (see below), whose sum is σ = 268554385152. Its totient is φ = 125884867920.

The previous prime is 195121545343. The next prime is 195121545401. The reversal of 195121545369 is 963545121591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 195121545369 - 2¹² = 195121541273 is a prime.

It is a super-2 number, since 2×195121545369² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (195121545319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1049040474 + ... + 1049040659.

It is an arithmetic number, because the mean of its divisors is an integer number (33569298144).

Almost surely, 2^195121545369 is an apocalyptic number.

It is an amenable number.

195121545369 is a deficient number, since it is larger than the sum of its proper divisors (73432839783).

195121545369 is a wasteful number, since it uses less digits than its factorization.

195121545369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098081167.

The product of its digits is 1458000, while the sum is 51.

The spelling of 195121545369 in words is "one hundred ninety-five billion, one hundred twenty-one million, five hundred forty-five thousand, three hundred sixty-nine".