1266133353 has 8 divisors (see below), whose sum is σ = 1691618016. Its totient is φ = 842368800.

The previous prime is 1266133291. The next prime is 1266133357. The reversal of 1266133353 is 3533316621.

It is a happy number.

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

It is not a de Polignac number, because 1266133353 - 2⁶ = 1266133289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1266133357) 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, 428308 + ... + 431253.

It is an arithmetic number, because the mean of its divisors is an integer number (211452252).

Almost surely, 2^1266133353 is an apocalyptic number.

It is an amenable number.

1266133353 is a deficient number, since it is larger than the sum of its proper divisors (425484663).

1266133353 is an equidigital number, since it uses as much as digits as its factorization.

1266133353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860055.

The product of its digits is 29160, while the sum is 33.

The square root of 1266133353 is about 35582.7676410928. The cubic root of 1266133353 is about 1081.8319824230.

Adding to 1266133353 its reverse (3533316621), we get a palindrome (4799449974).

The spelling of 1266133353 in words is "one billion, two hundred sixty-six million, one hundred thirty-three thousand, three hundred fifty-three".