140761729 has 2 divisors, whose sum is σ = 140761730. Its totient is φ = 140761728.

The previous prime is 140761703. The next prime is 140761769. The reversal of 140761729 is 927167041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80730225 + 60031504 = 8985^2 + 7748^2 .

It is a cyclic number.

It is not a de Polignac number, because 140761729 - 2⁷ = 140761601 is a prime.

It is not a weakly prime, because it can be changed into another prime (140761769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70380864 + 70380865.

It is an arithmetic number, because the mean of its divisors is an integer number (70380865).

Almost surely, 2^140761729 is an apocalyptic number.

It is an amenable number.

140761729 is a deficient number, since it is larger than the sum of its proper divisors (1).

140761729 is an equidigital number, since it uses as much as digits as its factorization.

140761729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 140761729 is about 11864.3048258210. The cubic root of 140761729 is about 520.1894391139.

It can be divided in two parts, 1407 and 61729, that added together give a palindrome (63136).

The spelling of 140761729 in words is "one hundred forty million, seven hundred sixty-one thousand, seven hundred twenty-nine".