161419 has 4 divisors (see below), whose sum is σ = 162640. Its totient is φ = 160200.

The previous prime is 161411. The next prime is 161453. The reversal of 161419 is 914161.

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 161419 - 2³ = 161411 is a prime.

It is a super-2 number, since 2×161419² = 52112187122, which contains 22 as substring.

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 161419.

It is not an unprimeable number, because it can be changed into a prime (161411) 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, 384 + ... + 685.

It is an arithmetic number, because the mean of its divisors is an integer number (40660).

2¹⁶¹⁴¹⁹ is an apocalyptic number.

161419 is a deficient number, since it is larger than the sum of its proper divisors (1221).

161419 is a wasteful number, since it uses less digits than its factorization.

161419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220.

The product of its digits is 216, while the sum is 22.

The square root of 161419 is about 401.7698346068. The cubic root of 161419 is about 54.4483701490.

The spelling of 161419 in words is "one hundred sixty-one thousand, four hundred nineteen".