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BaseRepresentation
bin100011000000101001
321021201011
4203000221
514042101
63023521
71135036
oct430051
9237634
10143401
1198815
126aba1
135036b
143a38d
152c751
hex23029

143401 has 2 divisors, whose sum is σ = 143402. Its totient is φ = 143400.

The previous prime is 143387. The next prime is 143413. The reversal of 143401 is 104341.

Adding to 143401 its reverse (104341), we get a palindrome (247742).

Subtracting from 143401 its reverse (104341), we obtain a triangular number (39060 = T279).

It can be divided in two parts, 14340 and 1, that added together give a palindrome (14341).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141376 + 2025 = 376^2 + 45^2 .

It is a cyclic number.

It is not a de Polignac number, because 143401 - 211 = 141353 is a prime.

143401 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (143461) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71700 + 71701.

It is an arithmetic number, because the mean of its divisors is an integer number (71701).

2143401 is an apocalyptic number.

143401 is the 240-th centered pentagonal number.

It is an amenable number.

143401 is a deficient number, since it is larger than the sum of its proper divisors (1).

143401 is an equidigital number, since it uses as much as digits as its factorization.

143401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 143401 is about 378.6832449423. The cubic root of 143401 is about 52.3420498371.

The spelling of 143401 in words is "one hundred forty-three thousand, four hundred one", and thus it is an iban number.