195122870 has 16 divisors (see below), whose sum is σ = 351591408. Its totient is φ = 77966880.

The previous prime is 195122861. The next prime is 195122903. The reversal of 195122870 is 78221591.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 195122870.

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, 185 + ... + 19755.

It is an arithmetic number, because the mean of its divisors is an integer number (21974463).

Almost surely, 2^195122870 is an apocalyptic number.

195122870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195122870 is a deficient number, since it is larger than the sum of its proper divisors (156468538).

195122870 is a wasteful number, since it uses less digits than its factorization.

195122870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20575.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 195122870 is about 13968.6388026894. The cubic root of 195122870 is about 580.0107707076.

The spelling of 195122870 in words is "one hundred ninety-five million, one hundred twenty-two thousand, eight hundred seventy".