143262481 has 2 divisors, whose sum is σ = 143262482. Its totient is φ = 143262480.

The previous prime is 143262479. The next prime is 143262503. The reversal of 143262481 is 184262341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112360000 + 30902481 = 10600^2 + 5559^2 .

It is an emirp because it is prime and its reverse (184262341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143262481 - 2¹ = 143262479 is a prime.

It is a super-2 number, since 2×143262481² = 41048276924550722, which contains 22 as substring.

Together with 143262479, it forms a pair of twin primes.

It is equal to p_8086063 and since 143262481 and 8086063 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (143262781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71631240 + 71631241.

It is an arithmetic number, because the mean of its divisors is an integer number (71631241).

Almost surely, 2^143262481 is an apocalyptic number.

It is an amenable number.

143262481 is a deficient number, since it is larger than the sum of its proper divisors (1).

143262481 is an equidigital number, since it uses as much as digits as its factorization.

143262481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 31.

The square root of 143262481 is about 11969.2305934843. The cubic root of 143262481 is about 523.2519104215.

It can be divided in two parts, 14326 and 2481, that added together give a 5-th power (16807 = 7⁵).

The spelling of 143262481 in words is "one hundred forty-three million, two hundred sixty-two thousand, four hundred eighty-one".