142040537 has 2 divisors, whose sum is σ = 142040538. Its totient is φ = 142040536.

The previous prime is 142040531. The next prime is 142040573. The reversal of 142040537 is 735040241.

Together with next prime (142040573) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106172416 + 35868121 = 10304^2 + 5989^2 .

It is a cyclic number.

It is not a de Polignac number, because 142040537 - 2⁸ = 142040281 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142040531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71020268 + 71020269.

It is an arithmetic number, because the mean of its divisors is an integer number (71020269).

Almost surely, 2^142040537 is an apocalyptic number.

It is an amenable number.

142040537 is a deficient number, since it is larger than the sum of its proper divisors (1).

142040537 is an equidigital number, since it uses as much as digits as its factorization.

142040537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 142040537 is about 11918.0760611770. The cubic root of 142040537 is about 521.7599844401.

Adding to 142040537 its reverse (735040241), we get a palindrome (877080778).

The spelling of 142040537 in words is "one hundred forty-two million, forty thousand, five hundred thirty-seven".