190863253 has 8 divisors (see below), whose sum is σ = 219238272. Its totient is φ = 162765456.

The previous prime is 190863221. The next prime is 190863307. The reversal of 190863253 is 352368091.

190863253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 190863253 - 2⁵ = 190863221 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 (190863203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67825 + ... + 70582.

It is an arithmetic number, because the mean of its divisors is an integer number (27404784).

Almost surely, 2^190863253 is an apocalyptic number.

It is an amenable number.

190863253 is a deficient number, since it is larger than the sum of its proper divisors (28375019).

190863253 is a wasteful number, since it uses less digits than its factorization.

190863253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138611.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 190863253 is about 13815.3267424263. The cubic root of 190863253 is about 575.7590509786.

The spelling of 190863253 in words is "one hundred ninety million, eight hundred sixty-three thousand, two hundred fifty-three".