140779 has 2 divisors, whose sum is σ = 140780. Its totient is φ = 140778.

The previous prime is 140773. The next prime is 140797. The reversal of 140779 is 977041.

Together with next prime (140797) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140779 - 2¹¹ = 138731 is a prime.

It is not a weakly prime, because it can be changed into another prime (140773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70389 + 70390.

It is an arithmetic number, because the mean of its divisors is an integer number (70390).

2¹⁴⁰⁷⁷⁹ is an apocalyptic number.

140779 is a deficient number, since it is larger than the sum of its proper divisors (1).

140779 is an equidigital number, since it uses as much as digits as its factorization.

140779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 140779 is about 375.2052771484. The cubic root of 140779 is about 52.0210713420.

It can be divided in two parts, 140 and 779, that added together give a palindrome (919).

The spelling of 140779 in words is "one hundred forty thousand, seven hundred seventy-nine".