1269285133 has 8 divisors (see below), whose sum is σ = 1290776760. Its totient is φ = 1247815680.

The previous prime is 1269285097. The next prime is 1269285187. The reversal of 1269285133 is 3315829621.

It can be written as a sum of positive squares in 4 ways, for example, as 86062729 + 1183222404 = 9277^2 + 34398^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1269285133 - 2²¹ = 1267187981 is a prime.

It is a super-2 number, since 2×1269285133² = 3222169497709655378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1269285533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143133 + ... + 151741.

It is an arithmetic number, because the mean of its divisors is an integer number (161347095).

Almost surely, 2^1269285133 is an apocalyptic number.

It is an amenable number.

1269285133 is a deficient number, since it is larger than the sum of its proper divisors (21491627).

1269285133 is an equidigital number, since it uses as much as digits as its factorization.

1269285133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11087.

The product of its digits is 77760, while the sum is 40.

The square root of 1269285133 is about 35627.0281247258. The cubic root of 1269285133 is about 1082.7289050777.

The spelling of 1269285133 in words is "one billion, two hundred sixty-nine million, two hundred eighty-five thousand, one hundred thirty-three".