143414321 has 2 divisors, whose sum is σ = 143414322. Its totient is φ = 143414320.

The previous prime is 143414317. The next prime is 143414353. The reversal of 143414321 is 123414341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78127921 + 65286400 = 8839^2 + 8080^2 .

It is an emirp because it is prime and its reverse (123414341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143414321 - 2² = 143414317 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (143410321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71707160 + 71707161.

It is an arithmetic number, because the mean of its divisors is an integer number (71707161).

Almost surely, 2^143414321 is an apocalyptic number.

It is an amenable number.

143414321 is a deficient number, since it is larger than the sum of its proper divisors (1).

143414321 is an equidigital number, since it uses as much as digits as its factorization.

143414321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 23.

The square root of 143414321 is about 11975.5718443839. The cubic root of 143414321 is about 523.4367052980.

Adding to 143414321 its reverse (123414341), we get a palindrome (266828662).

The spelling of 143414321 in words is "one hundred forty-three million, four hundred fourteen thousand, three hundred twenty-one".