142504657 has 2 divisors, whose sum is σ = 142504658. Its totient is φ = 142504656.

The previous prime is 142504631. The next prime is 142504669. The reversal of 142504657 is 756405241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111323601 + 31181056 = 10551^2 + 5584^2 .

It is a cyclic number.

It is not a de Polignac number, because 142504657 - 2²³ = 134116049 is a prime.

It is not a weakly prime, because it can be changed into another prime (142504697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71252328 + 71252329.

It is an arithmetic number, because the mean of its divisors is an integer number (71252329).

Almost surely, 2^142504657 is an apocalyptic number.

It is an amenable number.

142504657 is a deficient number, since it is larger than the sum of its proper divisors (1).

142504657 is an equidigital number, since it uses as much as digits as its factorization.

142504657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 142504657 is about 11937.5314449848. The cubic root of 142504657 is about 522.3276532986.

Adding to 142504657 its reverse (756405241), we get a palindrome (898909898).

The spelling of 142504657 in words is "one hundred forty-two million, five hundred four thousand, six hundred fifty-seven".