190975500 has 216 divisors, whose sum is σ = 639160704. Its totient is φ = 47952000.

The previous prime is 190975489. The next prime is 190975511. The reversal of 190975500 is 5579091.

It is a happy number.

190975500 is a `hidden beast` number, since 19 + 0 + 97 + 550 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (190975489) and next prime (190975511).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5161482 + ... + 5161518.

Almost surely, 2^190975500 is an apocalyptic number.

190975500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190975500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319580352).

190975500 is an abundant number, since it is smaller than the sum of its proper divisors (448185204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190975500 is a wasteful number, since it uses less digits than its factorization.

190975500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 14175, while the sum is 36.

The square root of 190975500 is about 13819.3885537675. The cubic root of 190975500 is about 575.8718971485.

The spelling of 190975500 in words is "one hundred ninety million, nine hundred seventy-five thousand, five hundred".