41431729 has 2 divisors, whose sum is σ = 41431730. Its totient is φ = 41431728.

The previous prime is 41431727. The next prime is 41431739. The reversal of 41431729 is 92713414.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33177600 + 8254129 = 5760^2 + 2873^2 .

It is a cyclic number.

It is not a de Polignac number, because 41431729 - 2¹ = 41431727 is a prime.

Together with 41431727, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 41431729.

It is not a weakly prime, because it can be changed into another prime (41431727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20715864 + 20715865.

It is an arithmetic number, because the mean of its divisors is an integer number (20715865).

Almost surely, 2^41431729 is an apocalyptic number.

It is an amenable number.

41431729 is a deficient number, since it is larger than the sum of its proper divisors (1).

41431729 is an equidigital number, since it uses as much as digits as its factorization.

41431729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 41431729 is about 6436.7483250474. The cubic root of 41431729 is about 346.0278219467.

The spelling of 41431729 in words is "forty-one million, four hundred thirty-one thousand, seven hundred twenty-nine".