143213450 has 48 divisors (see below), whose sum is σ = 282035520. Its totient is φ = 53953920.

The previous prime is 143213449. The next prime is 143213453. The reversal of 143213450 is 54312341.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (143213453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 221027 + ... + 221673.

It is an arithmetic number, because the mean of its divisors is an integer number (5875740).

Almost surely, 2^143213450 is an apocalyptic number.

143213450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143213450 is a deficient number, since it is larger than the sum of its proper divisors (138822070).

143213450 is a wasteful number, since it uses less digits than its factorization.

143213450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911 (or 906 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 143213450 is about 11967.1822080221. The cubic root of 143213450 is about 523.1922099993.

Adding to 143213450 its reverse (54312341), we get a palindrome (197525791).

It can be divided in two parts, 14321 and 3450, that added together give a palindrome (17771).

The spelling of 143213450 in words is "one hundred forty-three million, two hundred thirteen thousand, four hundred fifty".