195256190 has 16 divisors (see below), whose sum is σ = 353702592. Its totient is φ = 77604384.

The previous prime is 195256183. The next prime is 195256199. The reversal of 195256190 is 91652591.

It is a super-2 number, since 2×195256190² = 76249959466632200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195256199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60614 + ... + 63753.

It is an arithmetic number, because the mean of its divisors is an integer number (22106412).

Almost surely, 2^195256190 is an apocalyptic number.

195256190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195256190 is a deficient number, since it is larger than the sum of its proper divisors (158446402).

195256190 is a wasteful number, since it uses less digits than its factorization.

195256190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124531.

The product of its (nonzero) digits is 24300, while the sum is 38.

The square root of 195256190 is about 13973.4101063413. The cubic root of 195256190 is about 580.1428403639.

The spelling of 195256190 in words is "one hundred ninety-five million, two hundred fifty-six thousand, one hundred ninety".