1129275260 has 24 divisors (see below), whose sum is σ = 2496293520. Its totient is φ = 427935744.

The previous prime is 1129275197. The next prime is 1129275263. The reversal of 1129275260 is 625729211.

It is a super-2 number, since 2×1129275260² = 2550525225696135200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1129275260.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129275263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1485509 + ... + 1486268.

It is an arithmetic number, because the mean of its divisors is an integer number (104012230).

Almost surely, 2^1129275260 is an apocalyptic number.

1129275260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1129275260 is an abundant number, since it is smaller than the sum of its proper divisors (1367018260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1129275260 is a wasteful number, since it uses less digits than its factorization.

1129275260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971805 (or 2971803 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 1129275260 is about 33604.6910415793. The cubic root of 1129275260 is about 1041.3577126910.

The spelling of 1129275260 in words is "one billion, one hundred twenty-nine million, two hundred seventy-five thousand, two hundred sixty".