195145555 has 8 divisors (see below), whose sum is σ = 255463344. Its totient is φ = 141924000.

The previous prime is 195145541. The next prime is 195145603. The reversal of 195145555 is 555541591.

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

It is not a de Polignac number, because 195145555 - 2¹³ = 195137363 is a prime.

It is a Duffinian 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, 1773996 + ... + 1774105.

It is an arithmetic number, because the mean of its divisors is an integer number (31932918).

Almost surely, 2^195145555 is an apocalyptic number.

195145555 is a deficient number, since it is larger than the sum of its proper divisors (60317789).

195145555 is a wasteful number, since it uses less digits than its factorization.

195145555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3548117.

The product of its digits is 112500, while the sum is 40.

The square root of 195145555 is about 13969.4507766054. The cubic root of 195145555 is about 580.0332472023.

The spelling of 195145555 in words is "one hundred ninety-five million, one hundred forty-five thousand, five hundred fifty-five".