140768077 has 2 divisors, whose sum is σ = 140768078. Its totient is φ = 140768076.

The previous prime is 140768063. The next prime is 140768099. The reversal of 140768077 is 770867041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123010281 + 17757796 = 11091^2 + 4214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140768077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140768057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70384038 + 70384039.

It is an arithmetic number, because the mean of its divisors is an integer number (70384039).

Almost surely, 2^140768077 is an apocalyptic number.

It is an amenable number.

140768077 is a deficient number, since it is larger than the sum of its proper divisors (1).

140768077 is an equidigital number, since it uses as much as digits as its factorization.

140768077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 140768077 is about 11864.5723479610. The cubic root of 140768077 is about 520.1972587416.

The spelling of 140768077 in words is "one hundred forty million, seven hundred sixty-eight thousand, seventy-seven".