143212401 has 8 divisors (see below), whose sum is σ = 212166560. Its totient is φ = 95474916.

The previous prime is 143212397. The next prime is 143212409. The reversal of 143212401 is 104212341.

143212401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 143212401 - 2² = 143212397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143212409) 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, 2652055 + ... + 2652108.

It is an arithmetic number, because the mean of its divisors is an integer number (26520820).

Almost surely, 2^143212401 is an apocalyptic number.

It is an amenable number.

143212401 is a deficient number, since it is larger than the sum of its proper divisors (68954159).

143212401 is an equidigital number, since it uses as much as digits as its factorization.

143212401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5304172 (or 5304166 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 143212401 is about 11967.1383797464. The cubic root of 143212401 is about 523.1909325821.

Adding to 143212401 its reverse (104212341), we get a palindrome (247424742).

The spelling of 143212401 in words is "one hundred forty-three million, two hundred twelve thousand, four hundred one".