141218729 has 2 divisors, whose sum is σ = 141218730. Its totient is φ = 141218728.

The previous prime is 141218723. The next prime is 141218747. The reversal of 141218729 is 927812141.

141218729 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., 139122025 + 2096704 = 11795^2 + 1448^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-141218729 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (141218723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70609364 + 70609365.

It is an arithmetic number, because the mean of its divisors is an integer number (70609365).

Almost surely, 2^141218729 is an apocalyptic number.

It is an amenable number.

141218729 is a deficient number, since it is larger than the sum of its proper divisors (1).

141218729 is an equidigital number, since it uses as much as digits as its factorization.

141218729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 35.

The square root of 141218729 is about 11883.5486703257. The cubic root of 141218729 is about 520.7517836494.

The spelling of 141218729 in words is "one hundred forty-one million, two hundred eighteen thousand, seven hundred twenty-nine".