143496481 has 2 divisors, whose sum is σ = 143496482. Its totient is φ = 143496480.

The previous prime is 143496421. The next prime is 143496497. The reversal of 143496481 is 184694341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102010000 + 41486481 = 10100^2 + 6441^2 .

It is a cyclic number.

It is not a de Polignac number, because 143496481 - 2¹⁵ = 143463713 is a prime.

It is a super-2 number, since 2×143496481² = 41182480118766722, which contains 22 as substring.

It is a zygodrome in base 9.

It is not a weakly prime, because it can be changed into another prime (143496401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71748240 + 71748241.

It is an arithmetic number, because the mean of its divisors is an integer number (71748241).

Almost surely, 2^143496481 is an apocalyptic number.

It is an amenable number.

143496481 is a deficient number, since it is larger than the sum of its proper divisors (1).

143496481 is an equidigital number, since it uses as much as digits as its factorization.

143496481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 40.

The square root of 143496481 is about 11979.0016695883. The cubic root of 143496481 is about 523.5366426673.

Subtracting from 143496481 its sum of digits (40), we obtain a square (143496441 = 11979²).

The spelling of 143496481 in words is "one hundred forty-three million, four hundred ninety-six thousand, four hundred eighty-one".