140501729 has 2 divisors, whose sum is σ = 140501730. Its totient is φ = 140501728.

The previous prime is 140501707. The next prime is 140501741. The reversal of 140501729 is 927105041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102556129 + 37945600 = 10127^2 + 6160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140501729 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140501759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70250864 + 70250865.

It is an arithmetic number, because the mean of its divisors is an integer number (70250865).

Almost surely, 2^140501729 is an apocalyptic number.

It is an amenable number.

140501729 is a deficient number, since it is larger than the sum of its proper divisors (1).

140501729 is an equidigital number, since it uses as much as digits as its factorization.

140501729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 140501729 is about 11853.3425243684. The cubic root of 140501729 is about 519.8689622974.

The spelling of 140501729 in words is "one hundred forty million, five hundred one thousand, seven hundred twenty-nine".