1151166113 has 4 divisors (see below), whose sum is σ = 1161727380. Its totient is φ = 1140604848.

The previous prime is 1151166073. The next prime is 1151166119. The reversal of 1151166113 is 3116611511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 942305809 + 208860304 = 30697^2 + 14452^2 .

It is a cyclic number.

It is not a de Polignac number, because 1151166113 - 2¹² = 1151162017 is a prime.

It is a super-4 number, since 4×1151166113⁴ (a number of 37 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151166119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5280470 + ... + 5280687.

It is an arithmetic number, because the mean of its divisors is an integer number (290431845).

Almost surely, 2^1151166113 is an apocalyptic number.

It is an amenable number.

1151166113 is a deficient number, since it is larger than the sum of its proper divisors (10561267).

1151166113 is a wasteful number, since it uses less digits than its factorization.

1151166113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10561266.

The product of its digits is 540, while the sum is 26.

The square root of 1151166113 is about 33928.8389574415. The cubic root of 1151166113 is about 1048.0435565609.

Adding to 1151166113 its reverse (3116611511), we get a palindrome (4267777624).

The spelling of 1151166113 in words is "one billion, one hundred fifty-one million, one hundred sixty-six thousand, one hundred thirteen".