142340461 has 2 divisors, whose sum is σ = 142340462. Its totient is φ = 142340460.

The previous prime is 142340453. The next prime is 142340467. The reversal of 142340461 is 164043241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139122025 + 3218436 = 11795^2 + 1794^2 .

It is a cyclic number.

It is not a de Polignac number, because 142340461 - 2³ = 142340453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142340467) 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, 71170230 + 71170231.

It is an arithmetic number, because the mean of its divisors is an integer number (71170231).

Almost surely, 2^142340461 is an apocalyptic number.

It is an amenable number.

142340461 is a deficient number, since it is larger than the sum of its proper divisors (1).

142340461 is an equidigital number, since it uses as much as digits as its factorization.

142340461 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 25.

The square root of 142340461 is about 11930.6521615543. The cubic root of 142340461 is about 522.1269649519.

The spelling of 142340461 in words is "one hundred forty-two million, three hundred forty thousand, four hundred sixty-one".