195238512 has 100 divisors (see below), whose sum is σ = 645832176. Its totient is φ = 55779840.

The previous prime is 195238487. The next prime is 195238543. The reversal of 195238512 is 215832591.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent 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 19 ways as a sum of consecutive naturals, for example, 1689 + ... + 19832.

Almost surely, 2^195238512 is an apocalyptic number.

195238512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195238512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322916088).

195238512 is an abundant number, since it is smaller than the sum of its proper divisors (450593664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

195238512 is a wasteful number, since it uses less digits than its factorization.

195238512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21548 (or 21533 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 195238512 is about 13972.7775334756. Note that the first 3 decimals coincide. The cubic root of 195238512 is about 580.1253316152.

The spelling of 195238512 in words is "one hundred ninety-five million, two hundred thirty-eight thousand, five hundred twelve".