143412121 has 8 divisors (see below), whose sum is σ = 144702720. Its totient is φ = 142126608.

The previous prime is 143412109. The next prime is 143412149. The reversal of 143412121 is 121214341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 143412121 - 2¹¹ = 143410073 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143412161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74250 + ... + 76156.

It is an arithmetic number, because the mean of its divisors is an integer number (18087840).

Almost surely, 2^143412121 is an apocalyptic number.

It is an amenable number.

143412121 is a deficient number, since it is larger than the sum of its proper divisors (1290599).

143412121 is a wasteful number, since it uses less digits than its factorization.

143412121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543.

The product of its digits is 192, while the sum is 19.

The square root of 143412121 is about 11975.4799903803. The cubic root of 143412121 is about 523.4340287483.

Adding to 143412121 its reverse (121214341), we get a palindrome (264626462).

The spelling of 143412121 in words is "one hundred forty-three million, four hundred twelve thousand, one hundred twenty-one".