143621472 has 96 divisors (see below), whose sum is σ = 389491200. Its totient is φ = 46315008.

The previous prime is 143621461. The next prime is 143621479. The reversal of 143621472 is 274126341.

143621472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143621479) 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, 627054 + ... + 627282.

It is an arithmetic number, because the mean of its divisors is an integer number (4057200).

Almost surely, 2^143621472 is an apocalyptic number.

143621472 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 143621472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194745600).

143621472 is an abundant number, since it is smaller than the sum of its proper divisors (245869728).

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

143621472 is a wasteful number, since it uses less digits than its factorization.

143621472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 420 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 143621472 is about 11984.2176215221. The cubic root of 143621472 is about 523.6886054605.

The spelling of 143621472 in words is "one hundred forty-three million, six hundred twenty-one thousand, four hundred seventy-two".