190668535 has 16 divisors (see below), whose sum is σ = 233003232. Its totient is φ = 149760000.

The previous prime is 190668523. The next prime is 190668539. The reversal of 190668535 is 535866091.

It is not a de Polignac number, because 190668535 - 2⁵ = 190668503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 190668491 and 190668500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190668539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62035 + ... + 65035.

It is an arithmetic number, because the mean of its divisors is an integer number (14562702).

Almost surely, 2^190668535 is an apocalyptic number.

190668535 is a deficient number, since it is larger than the sum of its proper divisors (42334697).

190668535 is a wasteful number, since it uses less digits than its factorization.

190668535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3234.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 190668535 is about 13808.2777709604. The cubic root of 190668535 is about 575.5631885908.

The spelling of 190668535 in words is "one hundred ninety million, six hundred sixty-eight thousand, five hundred thirty-five".