195226145 has 8 divisors (see below), whose sum is σ = 236345256. Its totient is φ = 154798336.

The previous prime is 195226123. The next prime is 195226183. The reversal of 195226145 is 541622591.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8111104 + 187115041 = 2848^2 + 13679^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 195226145 - 2¹⁴ = 195209761 is a prime.

It is a super-2 number, since 2×195226145² = 76226495383122050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172202 + ... + 173331.

It is an arithmetic number, because the mean of its divisors is an integer number (29543157).

Almost surely, 2^195226145 is an apocalyptic number.

It is an amenable number.

195226145 is a deficient number, since it is larger than the sum of its proper divisors (41119111).

195226145 is a wasteful number, since it uses less digits than its factorization.

195226145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345651.

The product of its digits is 21600, while the sum is 35.

The square root of 195226145 is about 13972.3349873956. The cubic root of 195226145 is about 580.1130823901.

The spelling of 195226145 in words is "one hundred ninety-five million, two hundred twenty-six thousand, one hundred forty-five".