143303472 has 320 divisors, whose sum is σ = 499968000. Its totient is φ = 38817792.

The previous prime is 143303449. The next prime is 143303473. The reversal of 143303472 is 274303341.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143303473) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1813929 + ... + 1814007.

It is an arithmetic number, because the mean of its divisors is an integer number (1562400).

Almost surely, 2^143303472 is an apocalyptic number.

143303472 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 143303472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249984000).

143303472 is an abundant number, since it is smaller than the sum of its proper divisors (356664528).

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

143303472 is a wasteful number, since it uses less digits than its factorization.

143303472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 143303472 is about 11970.9428200121. The cubic root of 143303472 is about 523.3018108411.

The spelling of 143303472 in words is "one hundred forty-three million, three hundred three thousand, four hundred seventy-two".