144661000 has 64 divisors (see below), whose sum is σ = 369308160. Its totient is φ = 52600000.

The previous prime is 144660991. The next prime is 144661031. The reversal of 144661000 is 166441.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4425 + ... + 17575.

It is an arithmetic number, because the mean of its divisors is an integer number (5770440).

Almost surely, 2^144661000 is an apocalyptic number.

144661000 is a gapful number since it is divisible by the number (10) 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 144661000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184654080).

144661000 is an abundant number, since it is smaller than the sum of its proper divisors (224647160).

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

144661000 is a wasteful number, since it uses less digits than its factorization.

144661000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13183 (or 13169 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 144661000 is about 12027.5101330242. The cubic root of 144661000 is about 524.9490502333.

The spelling of 144661000 in words is "one hundred forty-four million, six hundred sixty-one thousand".