190497 has 4 divisors (see below), whose sum is σ = 254000. Its totient is φ = 126996.

The previous prime is 190471. The next prime is 190507. The reversal of 190497 is 794091.

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 an emirpimes, since its reverse is a distinct semiprime: 794091 = 3 ⋅264697.

It is not a de Polignac number, because 190497 - 2⁷ = 190369 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31747 + ... + 31752.

It is an arithmetic number, because the mean of its divisors is an integer number (63500).

2¹⁹⁰⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

190497 is a deficient number, since it is larger than the sum of its proper divisors (63503).

190497 is an equidigital number, since it uses as much as digits as its factorization.

190497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63502.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 190497 is about 436.4596201254. The cubic root of 190497 is about 57.5390534944.

The spelling of 190497 in words is "one hundred ninety thousand, four hundred ninety-seven".