601561000 has 64 divisors (see below), whose sum is σ = 1414820160. Its totient is φ = 239400000.

The previous prime is 601560961. The next prime is 601561001. The reversal of 601561000 is 165106.

It is not an unprimeable number, because it can be changed into a prime (601561001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209575 + ... + 212425.

It is an arithmetic number, because the mean of its divisors is an integer number (22106565).

Almost surely, 2^601561000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 601561000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (707410080).

601561000 is an abundant number, since it is smaller than the sum of its proper divisors (813259160).

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

601561000 is a wasteful number, since it uses less digits than its factorization.

601561000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083 (or 3069 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 601561000 is about 24526.7405090852. The cubic root of 601561000 is about 844.1634754432.

The spelling of 601561000 in words is "six hundred one million, five hundred sixty-one thousand".