190663245 has 24 divisors (see below), whose sum is σ = 349924536. Its totient is φ = 95705088.

The previous prime is 190663241. The next prime is 190663259. The reversal of 190663245 is 542366091.

It is a happy number.

190663245 is a `hidden beast` number, since 19 + 0 + 6 + 632 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 19027044 + 171636201 = 4362^2 + 13101^2 .

It is not a de Polignac number, because 190663245 - 2² = 190663241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190663241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123852 + ... + 125381.

It is an arithmetic number, because the mean of its divisors is an integer number (14580189).

Almost surely, 2^190663245 is an apocalyptic number.

190663245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

190663245 is a deficient number, since it is larger than the sum of its proper divisors (159261291).

190663245 is a wasteful number, since it uses less digits than its factorization.

190663245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249261 (or 249258 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 190663245 is about 13808.0862178652. The cubic root of 190663245 is about 575.5578656404.

The spelling of 190663245 in words is "one hundred ninety million, six hundred sixty-three thousand, two hundred forty-five".