612039 has 4 divisors (see below), whose sum is σ = 816056. Its totient is φ = 408024.

The previous prime is 612037. The next prime is 612041. The reversal of 612039 is 930216.

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

It is an interprime number because it is at equal distance from previous prime (612037) and next prime (612041).

It is not a de Polignac number, because 612039 - 2¹ = 612037 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102004 + ... + 102009.

It is an arithmetic number, because the mean of its divisors is an integer number (204014).

2⁶¹²⁰³⁹ is an apocalyptic number.

612039 is a deficient number, since it is larger than the sum of its proper divisors (204017).

612039 is a wasteful number, since it uses less digits than its factorization.

612039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204016.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 612039 is about 782.3292145894. The cubic root of 612039 is about 84.9036509201.

The spelling of 612039 in words is "six hundred twelve thousand, thirty-nine".