409195 has 4 divisors (see below), whose sum is σ = 491040. Its totient is φ = 327352.

The previous prime is 409187. The next prime is 409217. The reversal of 409195 is 591904.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 409195 - 2³ = 409187 is a prime.

It is an Ulam number.

409195 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40915 + ... + 40924.

It is an arithmetic number, because the mean of its divisors is an integer number (122760).

2⁴⁰⁹¹⁹⁵ is an apocalyptic number.

409195 is a deficient number, since it is larger than the sum of its proper divisors (81845).

409195 is an equidigital number, since it uses as much as digits as its factorization.

409195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81844.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 409195 is about 639.6835154981. The cubic root of 409195 is about 74.2409361373.

It can be divided in two parts, 4091 and 95, that added together give a triangular number (4186 = T₉₁).

The spelling of 409195 in words is "four hundred nine thousand, one hundred ninety-five".