190117471 has 4 divisors (see below), whose sum is σ = 198383472. Its totient is φ = 181851472.

The previous prime is 190117469. The next prime is 190117489. The reversal of 190117471 is 174711091.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 190117471 - 2¹ = 190117469 is a prime.

It is a super-3 number, since 3×190117471³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190117271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4132966 + ... + 4133011.

It is an arithmetic number, because the mean of its divisors is an integer number (49595868).

Almost surely, 2^190117471 is an apocalyptic number.

190117471 is a deficient number, since it is larger than the sum of its proper divisors (8266001).

190117471 is an equidigital number, since it uses as much as digits as its factorization.

190117471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8266000.

The product of its (nonzero) digits is 1764, while the sum is 31.

The square root of 190117471 is about 13788.3092146934. The cubic root of 190117471 is about 575.0081622030.

The spelling of 190117471 in words is "one hundred ninety million, one hundred seventeen thousand, four hundred seventy-one".