143145401 has 4 divisors (see below), whose sum is σ = 163594752. Its totient is φ = 122696052.

The previous prime is 143145367. The next prime is 143145407. The reversal of 143145401 is 104541341.

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, and also an emirpimes, since its reverse is a distinct semiprime: 104541341 = 709 ⋅147449.

It is a cyclic number.

It is not a de Polignac number, because 143145401 - 2²² = 138951097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143145407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10224665 + ... + 10224678.

It is an arithmetic number, because the mean of its divisors is an integer number (40898688).

Almost surely, 2^143145401 is an apocalyptic number.

It is an amenable number.

143145401 is a deficient number, since it is larger than the sum of its proper divisors (20449351).

143145401 is an equidigital number, since it uses as much as digits as its factorization.

143145401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20449350.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 143145401 is about 11964.3387197120. The cubic root of 143145401 is about 523.1093305697.

Adding to 143145401 its reverse (104541341), we get a palindrome (247686742).

The spelling of 143145401 in words is "one hundred forty-three million, one hundred forty-five thousand, four hundred one".