143420001 has 4 divisors (see below), whose sum is σ = 191226672. Its totient is φ = 95613332.

The previous prime is 143419963. The next prime is 143420003. The reversal of 143420001 is 100024341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 143420001 - 2⁶ = 143419937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143420003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23903331 + ... + 23903336.

It is an arithmetic number, because the mean of its divisors is an integer number (47806668).

Almost surely, 2^143420001 is an apocalyptic number.

It is an amenable number.

143420001 is a deficient number, since it is larger than the sum of its proper divisors (47806671).

143420001 is an equidigital number, since it uses as much as digits as its factorization.

143420001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47806670.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 143420001 is about 11975.8089914627. The cubic root of 143420001 is about 523.4436155359.

Adding to 143420001 its reverse (100024341), we get a palindrome (243444342).

The spelling of 143420001 in words is "one hundred forty-three million, four hundred twenty thousand, one".