140632777 has 2 divisors, whose sum is σ = 140632778. Its totient is φ = 140632776.

The previous prime is 140632769. The next prime is 140632841. The reversal of 140632777 is 777236041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136048896 + 4583881 = 11664^2 + 2141^2 .

It is a cyclic number.

It is not a de Polignac number, because 140632777 - 2³ = 140632769 is a prime.

It is not a weakly prime, because it can be changed into another prime (140632717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70316388 + 70316389.

It is an arithmetic number, because the mean of its divisors is an integer number (70316389).

Almost surely, 2^140632777 is an apocalyptic number.

It is an amenable number.

140632777 is a deficient number, since it is larger than the sum of its proper divisors (1).

140632777 is an equidigital number, since it uses as much as digits as its factorization.

140632777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 140632777 is about 11858.8691282095. The cubic root of 140632777 is about 520.0305418452.

The spelling of 140632777 in words is "one hundred forty million, six hundred thirty-two thousand, seven hundred seventy-seven".