143421007 has 2 divisors, whose sum is σ = 143421008. Its totient is φ = 143421006.

The previous prime is 143420971. The next prime is 143421041. The reversal of 143421007 is 700124341.

143421007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 143421007 - 2¹¹ = 143418959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143421067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71710503 + 71710504.

It is an arithmetic number, because the mean of its divisors is an integer number (71710504).

Almost surely, 2^143421007 is an apocalyptic number.

143421007 is a deficient number, since it is larger than the sum of its proper divisors (1).

143421007 is an equidigital number, since it uses as much as digits as its factorization.

143421007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 143421007 is about 11975.8509927270. The cubic root of 143421007 is about 523.4448394076. Note that the first 3 decimals are identical.

Adding to 143421007 its reverse (700124341), we get a palindrome (843545348).

The spelling of 143421007 in words is "one hundred forty-three million, four hundred twenty-one thousand, seven".