143268972 has 96 divisors (see below), whose sum is σ = 425779200. Its totient is φ = 36409920.

The previous prime is 143268959. The next prime is 143268973. The reversal of 143268972 is 279862341.

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

It is not an unprimeable number, because it can be changed into a prime (143268973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41779 + ... + 45077.

It is an arithmetic number, because the mean of its divisors is an integer number (4435200).

Almost surely, 2^143268972 is an apocalyptic number.

143268972 is a gapful number since it is divisible by the number (12) 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 143268972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212889600).

143268972 is an abundant number, since it is smaller than the sum of its proper divisors (282510228).

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

143268972 is a wasteful number, since it uses less digits than its factorization.

143268972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371 (or 3369 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 143268972 is about 11969.5017440159. The cubic root of 143268972 is about 523.2598128787.

The spelling of 143268972 in words is "one hundred forty-three million, two hundred sixty-eight thousand, nine hundred seventy-two".