143323450 has 12 divisors (see below), whose sum is σ = 266581710. Its totient is φ = 57329360.

The previous prime is 143323399. The next prime is 143323451. The reversal of 143323450 is 54323341.

It can be written as a sum of positive squares in 3 ways, for example, as 100982401 + 42341049 = 10049^2 + 6507^2 .

It is a super-2 number, since 2×143323450² = 41083222639805000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (143323451) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1433185 + ... + 1433284.

Almost surely, 2^143323450 is an apocalyptic number.

143323450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143323450 is a deficient number, since it is larger than the sum of its proper divisors (123258260).

143323450 is a wasteful number, since it uses less digits than its factorization.

143323450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2866481 (or 2866476 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 143323450 is about 11971.7772281312. Note that the first 3 decimals coincide. The cubic root of 143323450 is about 523.3261276229.

Adding to 143323450 its reverse (54323341), we get a palindrome (197646791).

The spelling of 143323450 in words is "one hundred forty-three million, three hundred twenty-three thousand, four hundred fifty".