143429401 has 4 divisors (see below), whose sum is σ = 143583412. Its totient is φ = 143275392.

The previous prime is 143429399. The next prime is 143429437. The reversal of 143429401 is 104924341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104924341 = 37 ⋅2835793.

It can be written as a sum of positive squares in 2 ways, for example, as 16281225 + 127148176 = 4035^2 + 11276^2 .

It is a cyclic number.

It is not a de Polignac number, because 143429401 - 2¹ = 143429399 is a prime.

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 143429401.

It is not an unprimeable number, because it can be changed into a prime (143429471) 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, 75600 + ... + 77473.

It is an arithmetic number, because the mean of its divisors is an integer number (35895853).

Almost surely, 2^143429401 is an apocalyptic number.

It is an amenable number.

143429401 is a deficient number, since it is larger than the sum of its proper divisors (154011).

143429401 is an equidigital number, since it uses as much as digits as its factorization.

143429401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154010.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 143429401 is about 11976.2014428616. The cubic root of 143429401 is about 523.4550510922.

The spelling of 143429401 in words is "one hundred forty-three million, four hundred twenty-nine thousand, four hundred one".