140585287 has 2 divisors, whose sum is σ = 140585288. Its totient is φ = 140585286.

The previous prime is 140585273. The next prime is 140585293. The reversal of 140585287 is 782585041.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140585287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140585987) 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, 70292643 + 70292644.

It is an arithmetic number, because the mean of its divisors is an integer number (70292644).

Almost surely, 2^140585287 is an apocalyptic number.

140585287 is a deficient number, since it is larger than the sum of its proper divisors (1).

140585287 is an equidigital number, since it uses as much as digits as its factorization.

140585287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 89600, while the sum is 40.

The square root of 140585287 is about 11856.8666602944. The cubic root of 140585287 is about 519.9719992319.

The spelling of 140585287 in words is "one hundred forty million, five hundred eighty-five thousand, two hundred eighty-seven".