1151256211 has 8 divisors (see below), whose sum is σ = 1343715840. Its totient is φ = 965795208.

The previous prime is 1151256199. The next prime is 1151256229. The reversal of 1151256211 is 1126521511.

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

It is not a de Polignac number, because 1151256211 - 2²³ = 1142867603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151256251) 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, 1749301 + ... + 1749958.

It is an arithmetic number, because the mean of its divisors is an integer number (167964480).

Almost surely, 2^1151256211 is an apocalyptic number.

1151256211 is a deficient number, since it is larger than the sum of its proper divisors (192459629).

1151256211 is an equidigital number, since it uses as much as digits as its factorization.

1151256211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3499313.

The product of its digits is 600, while the sum is 25.

The square root of 1151256211 is about 33930.1666809935. The cubic root of 1151256211 is about 1048.0708981594.

Adding to 1151256211 its reverse (1126521511), we get a palindrome (2277777722).

The spelling of 1151256211 in words is "one billion, one hundred fifty-one million, two hundred fifty-six thousand, two hundred eleven".