195021465 has 16 divisors (see below), whose sum is σ = 322100736. Its totient is φ = 100656000.

The previous prime is 195021427. The next prime is 195021473. The reversal of 195021465 is 564120591.

It is not a de Polignac number, because 195021465 - 2¹¹ = 195019417 is a prime.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 209236 + ... + 210165.

It is an arithmetic number, because the mean of its divisors is an integer number (20131296).

Almost surely, 2^195021465 is an apocalyptic number.

195021465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

195021465 is a deficient number, since it is larger than the sum of its proper divisors (127079271).

195021465 is a wasteful number, since it uses less digits than its factorization.

195021465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419440.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 195021465 is about 13965.0085929082. The cubic root of 195021465 is about 579.9102764498.

The spelling of 195021465 in words is "one hundred ninety-five million, twenty-one thousand, four hundred sixty-five".