195312501 has 6 divisors (see below), whose sum is σ = 282118070. Its totient is φ = 130208328.

The previous prime is 195312463. The next prime is 195312503. The reversal of 195312501 is 105213591.

It can be written as a sum of positive squares in only one way, i.e., 170302500 + 25010001 = 13050^2 + 5001^2 .

It is not a de Polignac number, because 195312501 - 2⁹ = 195311989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195312503) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10850686 + ... + 10850703.

Almost surely, 2^195312501 is an apocalyptic number.

It is an amenable number.

195312501 is a deficient number, since it is larger than the sum of its proper divisors (86805569).

195312501 is a wasteful number, since it uses less digits than its factorization.

195312501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21701395 (or 21701392 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 195312501 is about 13975.4248951508. The cubic root of 195312501 is about 580.1986051918.

The spelling of 195312501 in words is "one hundred ninety-five million, three hundred twelve thousand, five hundred one".