190705105 has 8 divisors (see below), whose sum is σ = 230648832. Its totient is φ = 151362288.

The previous prime is 190705091. The next prime is 190705111. The reversal of 190705105 is 501507091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 190705105 - 2¹⁹ = 190180817 is a prime.

It is a super-2 number, since 2×190705105² = 72736874146122050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149527 + ... + 150796.

It is an arithmetic number, because the mean of its divisors is an integer number (28831104).

Almost surely, 2^190705105 is an apocalyptic number.

It is an amenable number.

190705105 is a deficient number, since it is larger than the sum of its proper divisors (39943727).

190705105 is a wasteful number, since it uses less digits than its factorization.

190705105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300455.

The product of its (nonzero) digits is 1575, while the sum is 28.

The square root of 190705105 is about 13809.6019131617. The cubic root of 190705105 is about 575.5999836852.

The spelling of 190705105 in words is "one hundred ninety million, seven hundred five thousand, one hundred five".