609019 has 4 divisors (see below), whose sum is σ = 613800. Its totient is φ = 604240.

The previous prime is 608999. The next prime is 609043. The reversal of 609019 is 910906.

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 609019 - 2⁵ = 608987 is a prime.

It is a super-2 number, since 2×609019² = 741808284722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 608984 and 609002.

It is not an unprimeable number, because it can be changed into a prime (609079) 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, 2194 + ... + 2455.

It is an arithmetic number, because the mean of its divisors is an integer number (153450).

2⁶⁰⁹⁰¹⁹ is an apocalyptic number.

609019 is a deficient number, since it is larger than the sum of its proper divisors (4781).

609019 is a wasteful number, since it uses less digits than its factorization.

609019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4780.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 609019 is about 780.3966939961. The cubic root of 609019 is about 84.7637731667.

The spelling of 609019 in words is "six hundred nine thousand, nineteen".