142030657 has 2 divisors, whose sum is σ = 142030658. Its totient is φ = 142030656.

The previous prime is 142030649. The next prime is 142030697. The reversal of 142030657 is 756030241.

142030657 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 can be written as a sum of positive squares in only one way, i.e., 141991056 + 39601 = 11916^2 + 199^2 .

It is a cyclic number.

It is not a de Polignac number, because 142030657 - 2³ = 142030649 is a prime.

It is not a weakly prime, because it can be changed into another prime (142030697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71015328 + 71015329.

It is an arithmetic number, because the mean of its divisors is an integer number (71015329).

Almost surely, 2^142030657 is an apocalyptic number.

It is an amenable number.

142030657 is a deficient number, since it is larger than the sum of its proper divisors (1).

142030657 is an equidigital number, since it uses as much as digits as its factorization.

142030657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 142030657 is about 11917.6615575372. The cubic root of 142030657 is about 521.7478867008.

Adding to 142030657 its reverse (756030241), we get a palindrome (898060898).

The spelling of 142030657 in words is "one hundred forty-two million, thirty thousand, six hundred fifty-seven".