195187650 has 48 divisors (see below), whose sum is σ = 553220544. Its totient is φ = 44614080.

The previous prime is 195187639. The next prime is 195187667. The reversal of 195187650 is 56781591.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 23 ways as a sum of consecutive naturals, for example, 91897 + ... + 93996.

It is an arithmetic number, because the mean of its divisors is an integer number (11525428).

Almost surely, 2^195187650 is an apocalyptic number.

195187650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195187650 is an abundant number, since it is smaller than the sum of its proper divisors (358032894).

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

195187650 is a wasteful number, since it uses less digits than its factorization.

195187650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185915 (or 185910 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 42.

The square root of 195187650 is about 13970.9573759281. The cubic root of 195187650 is about 580.0749506787.

The spelling of 195187650 in words is "one hundred ninety-five million, one hundred eighty-seven thousand, six hundred fifty".