191053 has 4 divisors (see below), whose sum is σ = 197248. Its totient is φ = 184860.

The previous prime is 191047. The next prime is 191057. The reversal of 191053 is 350191.

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.

It is a cyclic number.

It is not a de Polignac number, because 191053 - 2⁵ = 191021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 191053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3051 + ... + 3112.

It is an arithmetic number, because the mean of its divisors is an integer number (49312).

2¹⁹¹⁰⁵³ is an apocalyptic number.

It is an amenable number.

191053 is a deficient number, since it is larger than the sum of its proper divisors (6195).

191053 is an equidigital number, since it uses as much as digits as its factorization.

191053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6194.

The product of its (nonzero) digits is 135, while the sum is 19.

The square root of 191053 is about 437.0960992734. The cubic root of 191053 is about 57.5949785039.

The spelling of 191053 in words is "one hundred ninety-one thousand, fifty-three".