195125491 has 16 divisors (see below), whose sum is σ = 224437248. Its totient is φ = 167904000.

The previous prime is 195125479. The next prime is 195125503. The reversal of 195125491 is 194521591.

195125491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (195125479) and next prime (195125503).

It is not a de Polignac number, because 195125491 - 2¹⁹ = 194601203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 195125491.

It is not an unprimeable number, because it can be changed into a prime (195125431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20566 + ... + 28516.

It is an arithmetic number, because the mean of its divisors is an integer number (14027328).

Almost surely, 2^195125491 is an apocalyptic number.

195125491 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

195125491 is a deficient number, since it is larger than the sum of its proper divisors (29311757).

195125491 is a wasteful number, since it uses less digits than its factorization.

195125491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8082.

The product of its digits is 16200, while the sum is 37.

The square root of 195125491 is about 13968.7326196760. The cubic root of 195125491 is about 580.0133677062.

The spelling of 195125491 in words is "one hundred ninety-five million, one hundred twenty-five thousand, four hundred ninety-one".