143013401 has 4 divisors (see below), whose sum is σ = 151425972. Its totient is φ = 134600832.

The previous prime is 143013397. The next prime is 143013427. The reversal of 143013401 is 104310341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104310341 = 107 ⋅974863.

It can be written as a sum of positive squares in 2 ways, for example, as 124099600 + 18913801 = 11140^2 + 4349^2 .

It is not a de Polignac number, because 143013401 - 2² = 143013397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 8412553 = 143013401 / (1 + 4 + 3 + 0 + 1 + 3 + 4 + 0 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143013401.

It is not an unprimeable number, because it can be changed into a prime (143013461) 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, 4206260 + ... + 4206293.

It is an arithmetic number, because the mean of its divisors is an integer number (37856493).

Almost surely, 2^143013401 is an apocalyptic number.

It is an amenable number.

143013401 is a deficient number, since it is larger than the sum of its proper divisors (8412571).

143013401 is an equidigital number, since it uses as much as digits as its factorization.

143013401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8412570.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 143013401 is about 11958.8210539334. The cubic root of 143013401 is about 522.9484878956.

Adding to 143013401 its reverse (104310341), we get a palindrome (247323742).

The spelling of 143013401 in words is "one hundred forty-three million, thirteen thousand, four hundred one".