1102729 has 2 divisors, whose sum is σ = 1102730. Its totient is φ = 1102728.

The previous prime is 1102727. The next prime is 1102733. The reversal of 1102729 is 9272011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 774400 + 328329 = 880^2 + 573^2 .

It is a cyclic number.

It is not a de Polignac number, because 1102729 - 2¹ = 1102727 is a prime.

It is a super-2 number, since 2×1102729² = 2432022494882, which contains 22 as substring.

Together with 1102727, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1102721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551364 + 551365.

It is an arithmetic number, because the mean of its divisors is an integer number (551365).

2^1102729 is an apocalyptic number.

It is an amenable number.

1102729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102729 is an equidigital number, since it uses as much as digits as its factorization.

1102729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 1102729 is about 1050.1090419571. The cubic root of 1102729 is about 103.3133074847.

The spelling of 1102729 in words is "one million, one hundred two thousand, seven hundred twenty-nine".