195474151 has 4 divisors (see below), whose sum is σ = 195531952. Its totient is φ = 195416352.

The previous prime is 195474091. The next prime is 195474161. The reversal of 195474151 is 151474591.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 195474151 - 2⁷ = 195474023 is a prime.

It is a Duffinian number.

It is a zygodrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 195474151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195474161) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 23490 + ... + 30703.

It is an arithmetic number, because the mean of its divisors is an integer number (48882988).

Almost surely, 2^195474151 is an apocalyptic number.

195474151 is a deficient number, since it is larger than the sum of its proper divisors (57801).

195474151 is an equidigital number, since it uses as much as digits as its factorization.

195474151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57800.

The product of its digits is 25200, while the sum is 37.

The square root of 195474151 is about 13981.2070652001. The cubic root of 195474151 is about 580.3586277900.

It can be divided in two parts, 195474 and 151, that added together give a triangular number (195625 = T₆₂₅).

The spelling of 195474151 in words is "one hundred ninety-five million, four hundred seventy-four thousand, one hundred fifty-one".