142681061 has 2 divisors, whose sum is σ = 142681062. Its totient is φ = 142681060.

The previous prime is 142681043. The next prime is 142681069. The reversal of 142681061 is 160186241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107516161 + 35164900 = 10369^2 + 5930^2 .

It is a cyclic number.

It is not a de Polignac number, because 142681061 - 2²² = 138486757 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142681069) 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, 71340530 + 71340531.

It is an arithmetic number, because the mean of its divisors is an integer number (71340531).

Almost surely, 2^142681061 is an apocalyptic number.

It is an amenable number.

142681061 is a deficient number, since it is larger than the sum of its proper divisors (1).

142681061 is an equidigital number, since it uses as much as digits as its factorization.

142681061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 142681061 is about 11944.9177895873. The cubic root of 142681061 is about 522.5430911555.

The spelling of 142681061 in words is "one hundred forty-two million, six hundred eighty-one thousand, sixty-one".