140977 has 2 divisors, whose sum is σ = 140978. Its totient is φ = 140976.

The previous prime is 140939. The next prime is 140983. The reversal of 140977 is 779041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87616 + 53361 = 296^2 + 231^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140977 is a prime.

It is a Chen prime.

140977 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (140177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70488 + 70489.

It is an arithmetic number, because the mean of its divisors is an integer number (70489).

2¹⁴⁰⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

140977 is a deficient number, since it is larger than the sum of its proper divisors (1).

140977 is an equidigital number, since it uses as much as digits as its factorization.

140977 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 140977 is about 375.4690400020. The cubic root of 140977 is about 52.0454484318.

The spelling of 140977 in words is "one hundred forty thousand, nine hundred seventy-seven".