190117705 has 16 divisors (see below), whose sum is σ = 240494400. Its totient is φ = 143881920.

The previous prime is 190117693. The next prime is 190117717. The reversal of 190117705 is 507711091.

It is an interprime number because it is at equal distance from previous prime (190117693) and next prime (190117717).

It is not a de Polignac number, because 190117705 - 2¹⁷ = 189986633 is a prime.

It is a super-2 number, since 2×190117705² = 72289483508934050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110391 + ... + 112099.

It is an arithmetic number, because the mean of its divisors is an integer number (15030900).

Almost surely, 2^190117705 is an apocalyptic number.

It is an amenable number.

190117705 is a deficient number, since it is larger than the sum of its proper divisors (50376695).

190117705 is a wasteful number, since it uses less digits than its factorization.

190117705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904.

The product of its (nonzero) digits is 2205, while the sum is 31.

The square root of 190117705 is about 13788.3177001402. The cubic root of 190117705 is about 575.0083981130.

Adding to 190117705 its reverse (507711091), we get a palindrome (697828796).

The spelling of 190117705 in words is "one hundred ninety million, one hundred seventeen thousand, seven hundred five".