1153666113 has 4 divisors (see below), whose sum is σ = 1538221488. Its totient is φ = 769110740.

The previous prime is 1153666097. The next prime is 1153666133. The reversal of 1153666113 is 3116663511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1153666113 - 2⁴ = 1153666097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1153666133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192277683 + ... + 192277688.

It is an arithmetic number, because the mean of its divisors is an integer number (384555372).

Almost surely, 2^1153666113 is an apocalyptic number.

It is an amenable number.

1153666113 is a deficient number, since it is larger than the sum of its proper divisors (384555375).

1153666113 is an equidigital number, since it uses as much as digits as its factorization.

1153666113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384555374.

The product of its digits is 9720, while the sum is 33.

The square root of 1153666113 is about 33965.6607914523. The cubic root of 1153666113 is about 1048.8016905494.

The spelling of 1153666113 in words is "one billion, one hundred fifty-three million, six hundred sixty-six thousand, one hundred thirteen".