195190520 has 96 divisors (see below), whose sum is σ = 520797600. Its totient is φ = 65624832.

The previous prime is 195190517. The next prime is 195190529. The reversal of 195190520 is 25091591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195190529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102941 + ... + 104819.

It is an arithmetic number, because the mean of its divisors is an integer number (5424975).

Almost surely, 2^195190520 is an apocalyptic number.

195190520 is a gapful number since it is divisible by the number (10) 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 195190520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260398800).

195190520 is an abundant number, since it is smaller than the sum of its proper divisors (325607080).

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

195190520 is a wasteful number, since it uses less digits than its factorization.

195190520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957 (or 1946 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 32.

The square root of 195190520 is about 13971.0600886261. The cubic root of 195190520 is about 580.0777937666.

The spelling of 195190520 in words is "one hundred ninety-five million, one hundred ninety thousand, five hundred twenty".