190453 has 4 divisors (see below), whose sum is σ = 191520. Its totient is φ = 189388.

The previous prime is 190409. The next prime is 190471. The reversal of 190453 is 354091.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 190453 - 2¹³ = 182261 is a prime.

It is a Duffinian number.

190453 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193 + ... + 646.

It is an arithmetic number, because the mean of its divisors is an integer number (47880).

2¹⁹⁰⁴⁵³ is an apocalyptic number.

It is an amenable number.

190453 is a deficient number, since it is larger than the sum of its proper divisors (1067).

190453 is an equidigital number, since it uses as much as digits as its factorization.

190453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 190453 is about 436.4092116351. The cubic root of 190453 is about 57.5346231302.

The spelling of 190453 in words is "one hundred ninety thousand, four hundred fifty-three".