141979729 has 2 divisors, whose sum is σ = 141979730. Its totient is φ = 141979728.

The previous prime is 141979727. The next prime is 141979741. The reversal of 141979729 is 927979141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131056704 + 10923025 = 11448^2 + 3305^2 .

It is a cyclic number.

It is not a de Polignac number, because 141979729 - 2¹ = 141979727 is a prime.

Together with 141979727, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (141979727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70989864 + 70989865.

It is an arithmetic number, because the mean of its divisors is an integer number (70989865).

Almost surely, 2^141979729 is an apocalyptic number.

It is an amenable number.

141979729 is a deficient number, since it is larger than the sum of its proper divisors (1).

141979729 is an equidigital number, since it uses as much as digits as its factorization.

141979729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 49.

The square root of 141979729 is about 11915.5247051903. The cubic root of 141979729 is about 521.6855181167.

The spelling of 141979729 in words is "one hundred forty-one million, nine hundred seventy-nine thousand, seven hundred twenty-nine".