1126855213 has 16 divisors (see below), whose sum is σ = 1244763072. Its totient is φ = 1020030000.

The previous prime is 1126855159. The next prime is 1126855237. The reversal of 1126855213 is 3125586211.

It is a de Polignac number, because none of the positive numbers 2^k-1126855213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1126855243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332395 + ... + 335767.

It is an arithmetic number, because the mean of its divisors is an integer number (77797692).

Almost surely, 2^1126855213 is an apocalyptic number.

It is an amenable number.

1126855213 is a deficient number, since it is larger than the sum of its proper divisors (117907859).

1126855213 is an equidigital number, since it uses as much as digits as its factorization.

1126855213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3657 (or 3635 counting only the distinct ones).

The product of its digits is 14400, while the sum is 34.

The square root of 1126855213 is about 33568.6641527482. The cubic root of 1126855213 is about 1040.6133010411.

The spelling of 1126855213 in words is "one billion, one hundred twenty-six million, eight hundred fifty-five thousand, two hundred thirteen".