195031250 has 42 divisors (see below), whose sum is σ = 370366353. Its totient is φ = 77025000.

The previous prime is 195031217. The next prime is 195031271. The reversal of 195031250 is 52130591.

It can be written as a sum of positive squares in 4 ways, for example, as 33258289 + 161772961 = 5767^2 + 12719^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=9875.

It is a Duffinian number.

It is an unprimeable number.

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 20 ways as a sum of consecutive naturals, for example, 2468711 + ... + 2468789.

Almost surely, 2^195031250 is an apocalyptic number.

195031250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195031250 is a deficient number, since it is larger than the sum of its proper divisors (175335103).

195031250 is an frugal number, since it uses more digits than its factorization.

195031250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 195031250 is about 13965.3589284343. The cubic root of 195031250 is about 579.9199750868.

The spelling of 195031250 in words is "one hundred ninety-five million, thirty-one thousand, two hundred fifty".