143972280 has 192 divisors, whose sum is σ = 488816640. Its totient is φ = 36723456.

The previous prime is 143972251. The next prime is 143972281. The reversal of 143972280 is 82279341.

143972280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143972281) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1133577 + ... + 1133703.

It is an arithmetic number, because the mean of its divisors is an integer number (2545920).

Almost surely, 2^143972280 is an apocalyptic number.

143972280 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 143972280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244408320).

143972280 is an abundant number, since it is smaller than the sum of its proper divisors (344844360).

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

143972280 is a wasteful number, since it uses less digits than its factorization.

143972280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 143972280 is about 11998.8449444103. The cubic root of 143972280 is about 524.1146438355.

The spelling of 143972280 in words is "one hundred forty-three million, nine hundred seventy-two thousand, two hundred eighty".