190545 has 8 divisors (see below), whose sum is σ = 304896. Its totient is φ = 101616.

The previous prime is 190543. The next prime is 190573. The reversal of 190545 is 545091.

190545 is nontrivially palindromic in base 12.

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

It is not a de Polignac number, because 190545 - 2¹ = 190543 is a prime.

190545 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (190543) 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, 6337 + ... + 6366.

It is an arithmetic number, because the mean of its divisors is an integer number (38112).

2¹⁹⁰⁵⁴⁵ is an apocalyptic number.

190545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

190545 is a deficient number, since it is larger than the sum of its proper divisors (114351).

190545 is a wasteful number, since it uses less digits than its factorization.

190545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12711.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 190545 is about 436.5146045667. The cubic root of 190545 is about 57.5438858411.

The spelling of 190545 in words is "one hundred ninety thousand, five hundred forty-five".