140842577 has 2 divisors, whose sum is σ = 140842578. Its totient is φ = 140842576.

The previous prime is 140842567. The next prime is 140842601. The reversal of 140842577 is 775248041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128232976 + 12609601 = 11324^2 + 3551^2 .

It is a cyclic number.

It is not a de Polignac number, because 140842577 - 2¹⁰ = 140841553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140842577.

It is not a weakly prime, because it can be changed into another prime (140842567) 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, 70421288 + 70421289.

It is an arithmetic number, because the mean of its divisors is an integer number (70421289).

Almost surely, 2^140842577 is an apocalyptic number.

It is an amenable number.

140842577 is a deficient number, since it is larger than the sum of its proper divisors (1).

140842577 is an equidigital number, since it uses as much as digits as its factorization.

140842577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62720, while the sum is 38.

The square root of 140842577 is about 11867.7115317149. The cubic root of 140842577 is about 520.2890121698.

It can be divided in two parts, 14084 and 2577, that added together give a palindrome (16661).

The spelling of 140842577 in words is "one hundred forty million, eight hundred forty-two thousand, five hundred seventy-seven".