143166401 has 24 divisors (see below), whose sum is σ = 179744256. Its totient is φ = 111202560.

The previous prime is 143166347. The next prime is 143166427. The reversal of 143166401 is 104661341.

It is not a de Polignac number, because 143166401 - 2¹⁰ = 143165377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143166461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 726635 + ... + 726831.

It is an arithmetic number, because the mean of its divisors is an integer number (7489344).

Almost surely, 2^143166401 is an apocalyptic number.

It is an amenable number.

143166401 is a deficient number, since it is larger than the sum of its proper divisors (36577855).

143166401 is an equidigital number, since it uses as much as digits as its factorization.

143166401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 143166401 is about 11965.2162955794. The cubic root of 143166401 is about 523.1349100590.

The spelling of 143166401 in words is "one hundred forty-three million, one hundred sixty-six thousand, four hundred one".