1129270105 has 8 divisors (see below), whose sum is σ = 1357728264. Its totient is φ = 901680000.

The previous prime is 1129270091. The next prime is 1129270117. The reversal of 1129270105 is 5010729211.

It can be written as a sum of positive squares in 4 ways, for example, as 123365449 + 1005904656 = 11107^2 + 31716^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1129270105 - 2¹⁹ = 1128745817 is a prime.

It is a super-2 number, since 2×1129270105² = 2550501940093422050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214146 + ... + 219355.

It is an arithmetic number, because the mean of its divisors is an integer number (169716033).

Almost surely, 2^1129270105 is an apocalyptic number.

It is an amenable number.

1129270105 is a deficient number, since it is larger than the sum of its proper divisors (228458159).

1129270105 is an equidigital number, since it uses as much as digits as its factorization.

1129270105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434027.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 1129270105 is about 33604.6143408907. The cubic root of 1129270105 is about 1041.3561281328.

Adding to 1129270105 its reverse (5010729211), we get a palindrome (6139999316).

The spelling of 1129270105 in words is "one billion, one hundred twenty-nine million, two hundred seventy thousand, one hundred five".