142463509 has 2 divisors, whose sum is σ = 142463510. Its totient is φ = 142463508.

The previous prime is 142463491. The next prime is 142463521. The reversal of 142463509 is 905364241.

It is a happy number.

142463509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125216100 + 17247409 = 11190^2 + 4153^2 .

It is a cyclic number.

It is not a de Polignac number, because 142463509 - 2⁷ = 142463381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142463549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71231754 + 71231755.

It is an arithmetic number, because the mean of its divisors is an integer number (71231755).

Almost surely, 2^142463509 is an apocalyptic number.

It is an amenable number.

142463509 is a deficient number, since it is larger than the sum of its proper divisors (1).

142463509 is an equidigital number, since it uses as much as digits as its factorization.

142463509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 142463509 is about 11935.8078486544. The cubic root of 142463509 is about 522.2773746908.

The spelling of 142463509 in words is "one hundred forty-two million, four hundred sixty-three thousand, five hundred nine".