195212645 has 8 divisors (see below), whose sum is σ = 234416256. Its totient is φ = 156062736.

The previous prime is 195212623. The next prime is 195212657. The reversal of 195212645 is 546212591.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 195212645 - 2¹⁶ = 195147109 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 4937 + ... + 20366.

It is an arithmetic number, because the mean of its divisors is an integer number (29302032).

Almost surely, 2^195212645 is an apocalyptic number.

It is an amenable number.

195212645 is a deficient number, since it is larger than the sum of its proper divisors (39203611).

195212645 is a wasteful number, since it uses less digits than its factorization.

195212645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26851.

The product of its digits is 21600, while the sum is 35.

The square root of 195212645 is about 13971.8518815510. The cubic root of 195212645 is about 580.0997103643.

The spelling of 195212645 in words is "one hundred ninety-five million, two hundred twelve thousand, six hundred forty-five".