142543651 has 2 divisors, whose sum is σ = 142543652. Its totient is φ = 142543650.

The previous prime is 142543637. The next prime is 142543679. The reversal of 142543651 is 156345241.

It is a happy number.

142543651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142543651 - 2⁹ = 142543139 is a prime.

It is not a weakly prime, because it can be changed into another prime (142543601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71271825 + 71271826.

It is an arithmetic number, because the mean of its divisors is an integer number (71271826).

Almost surely, 2^142543651 is an apocalyptic number.

142543651 is a deficient number, since it is larger than the sum of its proper divisors (1).

142543651 is an equidigital number, since it uses as much as digits as its factorization.

142543651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 31.

The square root of 142543651 is about 11939.1645855143. The cubic root of 142543651 is about 522.3752910097.

Adding to 142543651 its reverse (156345241), we get a palindrome (298888892).

The spelling of 142543651 in words is "one hundred forty-two million, five hundred forty-three thousand, six hundred fifty-one".