140874469 has 2 divisors, whose sum is σ = 140874470. Its totient is φ = 140874468.

The previous prime is 140874467. The next prime is 140874479. The reversal of 140874469 is 964478041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113678244 + 27196225 = 10662^2 + 5215^2 .

It is a cyclic number.

It is not a de Polignac number, because 140874469 - 2¹ = 140874467 is a prime.

It is a super-2 number, since 2×140874469² = 39691232032063922, which contains 22 as substring.

Together with 140874467, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140874467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70437234 + 70437235.

It is an arithmetic number, because the mean of its divisors is an integer number (70437235).

Almost surely, 2^140874469 is an apocalyptic number.

It is an amenable number.

140874469 is a deficient number, since it is larger than the sum of its proper divisors (1).

140874469 is an equidigital number, since it uses as much as digits as its factorization.

140874469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 140874469 is about 11869.0551013971. The cubic root of 140874469 is about 520.3282801366.

The spelling of 140874469 in words is "one hundred forty million, eight hundred seventy-four thousand, four hundred sixty-nine".