140842277 has 2 divisors, whose sum is σ = 140842278. Its totient is φ = 140842276.

The previous prime is 140842237. The next prime is 140842283. The reversal of 140842277 is 772248041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78605956 + 62236321 = 8866^2 + 7889^2 .

It is a cyclic number.

It is not a de Polignac number, because 140842277 - 2²⁴ = 124065061 is a prime.

It is a super-3 number, since 3×140842277³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140842217) 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, 70421138 + 70421139.

It is an arithmetic number, because the mean of its divisors is an integer number (70421139).

Almost surely, 2^140842277 is an apocalyptic number.

It is an amenable number.

140842277 is a deficient number, since it is larger than the sum of its proper divisors (1).

140842277 is an equidigital number, since it uses as much as digits as its factorization.

140842277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 140842277 is about 11867.6988923717. The cubic root of 140842277 is about 520.2886427578.

It can be divided in two parts, 14084 and 2277, that added together give a palindrome (16361).

The spelling of 140842277 in words is "one hundred forty million, eight hundred forty-two thousand, two hundred seventy-seven".