143561660 has 48 divisors (see below), whose sum is σ = 331666272. Its totient is φ = 52194560.

The previous prime is 143561659. The next prime is 143561669. The reversal of 143561660 is 66165341.

143561660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143561669) 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, 23924 + ... + 29316.

It is an arithmetic number, because the mean of its divisors is an integer number (6909714).

Almost surely, 2^143561660 is an apocalyptic number.

143561660 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 143561660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165833136).

143561660 is an abundant number, since it is smaller than the sum of its proper divisors (188104612).

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

143561660 is a wasteful number, since it uses less digits than its factorization.

143561660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5435 (or 5411 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 143561660 is about 11981.7219129806. The cubic root of 143561660 is about 523.6158976413.

The spelling of 143561660 in words is "one hundred forty-three million, five hundred sixty-one thousand, six hundred sixty".