140466769 has 2 divisors, whose sum is σ = 140466770. Its totient is φ = 140466768.

The previous prime is 140466761. The next prime is 140466827. The reversal of 140466769 is 967664041.

140466769 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., 137945025 + 2521744 = 11745^2 + 1588^2 .

It is a cyclic number.

It is not a de Polignac number, because 140466769 - 2³ = 140466761 is a prime.

It is a super-2 number, since 2×140466769² = 39461826386598722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140466761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70233384 + 70233385.

It is an arithmetic number, because the mean of its divisors is an integer number (70233385).

Almost surely, 2^140466769 is an apocalyptic number.

It is an amenable number.

140466769 is a deficient number, since it is larger than the sum of its proper divisors (1).

140466769 is an equidigital number, since it uses as much as digits as its factorization.

140466769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 140466769 is about 11851.8677431028. The cubic root of 140466769 is about 519.8258403452.

The spelling of 140466769 in words is "one hundred forty million, four hundred sixty-six thousand, seven hundred sixty-nine".