609148860 has 96 divisors (see below), whose sum is σ = 1733114880. Its totient is φ = 159844608.

The previous prime is 609148847. The next prime is 609148889. The reversal of 609148860 is 68841906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1534182 + ... + 1534578.

It is an arithmetic number, because the mean of its divisors is an integer number (18053280).

Almost surely, 2^609148860 is an apocalyptic number.

609148860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 609148860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (866557440).

609148860 is an abundant number, since it is smaller than the sum of its proper divisors (1123966020).

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

609148860 is a wasteful number, since it uses less digits than its factorization.

609148860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 609148860 is about 24680.9412300261. The cubic root of 609148860 is about 847.6979741293.

The spelling of 609148860 in words is "six hundred nine million, one hundred forty-eight thousand, eight hundred sixty".