143061731736 has 128 divisors (see below), whose sum is σ = 446034677760. Its totient is φ = 37148227200.

The previous prime is 143061731719. The next prime is 143061731741. The reversal of 143061731736 is 637137160341.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 7987351 + ... + 8005241.

It is an arithmetic number, because the mean of its divisors is an integer number (3484645920).

Almost surely, 2^143061731736 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 143061731736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223017338880).

143061731736 is an abundant number, since it is smaller than the sum of its proper divisors (302972946024).

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

143061731736 is a wasteful number, since it uses less digits than its factorization.

143061731736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22245 (or 22241 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 42.

The spelling of 143061731736 in words is "one hundred forty-three billion, sixty-one million, seven hundred thirty-one thousand, seven hundred thirty-six".