612045 has 48 divisors (see below), whose sum is σ = 1272960. Its totient is φ = 266112.

The previous prime is 612043. The next prime is 612049. The reversal of 612045 is 540216.

It is a happy number.

It is not a de Polignac number, because 612045 - 2¹ = 612043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612041) 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 47 ways as a sum of consecutive naturals, for example, 9102 + ... + 9168.

It is an arithmetic number, because the mean of its divisors is an integer number (26520).

2⁶¹²⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

612045 is an abundant number, since it is smaller than the sum of its proper divisors (660915).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612045 is a wasteful number, since it uses less digits than its factorization.

612045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 612045 is about 782.3330492827. Note that the first 3 decimals coincide. The cubic root of 612045 is about 84.9039283644.

The spelling of 612045 in words is "six hundred twelve thousand, forty-five".