190855197 has 40 divisors (see below), whose sum is σ = 308850080. Its totient is φ = 116756640.

The previous prime is 190855103. The next prime is 190855207. The reversal of 190855197 is 791558091.

190855197 is a `hidden beast` number, since 1 + 9 + 0 + 8 + 551 + 97 = 666.

It is not a de Polignac number, because 190855197 - 2¹⁹ = 190330909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190855897) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 221754 + ... + 222612.

It is an arithmetic number, because the mean of its divisors is an integer number (7721252).

Almost surely, 2^190855197 is an apocalyptic number.

It is an amenable number.

190855197 is a deficient number, since it is larger than the sum of its proper divisors (117994883).

190855197 is a wasteful number, since it uses less digits than its factorization.

190855197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095 (or 1086 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 45.

The square root of 190855197 is about 13815.0351791083. The cubic root of 190855197 is about 575.7509502746.

The spelling of 190855197 in words is "one hundred ninety million, eight hundred fifty-five thousand, one hundred ninety-seven".