143121450 has 48 divisors (see below), whose sum is σ = 356361120. Its totient is φ = 38013120.

The previous prime is 143121431. The next prime is 143121481. The reversal of 143121450 is 54121341.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38577 + ... + 42123.

It is an arithmetic number, because the mean of its divisors is an integer number (7424190).

Almost surely, 2^143121450 is an apocalyptic number.

143121450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 143121450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178180560).

143121450 is an abundant number, since it is smaller than the sum of its proper divisors (213239670).

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

143121450 is a wasteful number, since it uses less digits than its factorization.

143121450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3831 (or 3826 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 143121450 is about 11963.3377449606. The cubic root of 143121450 is about 523.0801534990.

Adding to 143121450 its reverse (54121341), we get a palindrome (197242791).

The spelling of 143121450 in words is "one hundred forty-three million, one hundred twenty-one thousand, four hundred fifty".