140412761 has 2 divisors, whose sum is σ = 140412762. Its totient is φ = 140412760.

The previous prime is 140412757. The next prime is 140412773. The reversal of 140412761 is 167214041.

140412761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110775625 + 29637136 = 10525^2 + 5444^2 .

It is a cyclic number.

It is not a de Polignac number, because 140412761 - 2² = 140412757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140412761.

It is not a weakly prime, because it can be changed into another prime (140412781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70206380 + 70206381.

It is an arithmetic number, because the mean of its divisors is an integer number (70206381).

Almost surely, 2^140412761 is an apocalyptic number.

It is an amenable number.

140412761 is a deficient number, since it is larger than the sum of its proper divisors (1).

140412761 is an equidigital number, since it uses as much as digits as its factorization.

140412761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 140412761 is about 11849.5890646047. The cubic root of 140412761 is about 519.7592092762.

The spelling of 140412761 in words is "one hundred forty million, four hundred twelve thousand, seven hundred sixty-one".