190117403 has 12 divisors (see below), whose sum is σ = 222135840. Its totient is φ = 162236592.

The previous prime is 190117399. The next prime is 190117453. The reversal of 190117403 is 304711091.

It is not a de Polignac number, because 190117403 - 2² = 190117399 is a prime.

It is a super-2 number, since 2×190117403² = 72289253846928818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190117453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2750 + ... + 19692.

It is an arithmetic number, because the mean of its divisors is an integer number (18511320).

Almost surely, 2^190117403 is an apocalyptic number.

190117403 is a deficient number, since it is larger than the sum of its proper divisors (32018437).

190117403 is a wasteful number, since it uses less digits than its factorization.

190117403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17186 (or 17179 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 190117403 is about 13788.3067488361. The cubic root of 190117403 is about 575.0080936479.

Adding to 190117403 its reverse (304711091), we get a palindrome (494828494).

The spelling of 190117403 in words is "one hundred ninety million, one hundred seventeen thousand, four hundred three".