191795650 has 12 divisors (see below), whose sum is σ = 356740002. Its totient is φ = 76718240.

The previous prime is 191795627. The next prime is 191795657. The reversal of 191795650 is 56597191.

191795650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 180445489 + 11350161 = 13433^2 + 3369^2 .

It is a junction number, because it is equal to n+sod(n) for n = 191795597 and 191795606.

It is not an unprimeable number, because it can be changed into a prime (191795657) 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, 1917907 + ... + 1918006.

Almost surely, 2^191795650 is an apocalyptic number.

191795650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

191795650 is a deficient number, since it is larger than the sum of its proper divisors (164944352).

191795650 is a wasteful number, since it uses less digits than its factorization.

191795650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3835925 (or 3835920 counting only the distinct ones).

The product of its (nonzero) digits is 85050, while the sum is 43.

The square root of 191795650 is about 13849.0306519987. The cubic root of 191795650 is about 576.6950862327.

The spelling of 191795650 in words is "one hundred ninety-one million, seven hundred ninety-five thousand, six hundred fifty".