143461 has 2 divisors, whose sum is σ = 143462. Its totient is φ = 143460.

The previous prime is 143443. The next prime is 143467. The reversal of 143461 is 164341.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136900 + 6561 = 370^2 + 81^2 .

It is an emirp because it is prime and its reverse (164341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143461 - 2⁷ = 143333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71730 + 71731.

It is an arithmetic number, because the mean of its divisors is an integer number (71731).

2¹⁴³⁴⁶¹ is an apocalyptic number.

It is an amenable number.

143461 is a deficient number, since it is larger than the sum of its proper divisors (1).

143461 is an equidigital number, since it uses as much as digits as its factorization.

143461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 19.

The square root of 143461 is about 378.7624585410. The cubic root of 143461 is about 52.3493489147.

The spelling of 143461 in words is "one hundred forty-three thousand, four hundred sixty-one".