1166123253 has 8 divisors (see below), whose sum is σ = 1622432448. Its totient is φ = 743614784.

The previous prime is 1166123239. The next prime is 1166123297. The reversal of 1166123253 is 3523216611.

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

It is a cyclic number.

It is not a de Polignac number, because 1166123253 - 2⁴ = 1166123237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1166123253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166122253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8450100 + ... + 8450237.

It is an arithmetic number, because the mean of its divisors is an integer number (202804056).

Almost surely, 2^1166123253 is an apocalyptic number.

It is an amenable number.

1166123253 is a deficient number, since it is larger than the sum of its proper divisors (456309195).

1166123253 is a wasteful number, since it uses less digits than its factorization.

1166123253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16900363.

The product of its digits is 6480, while the sum is 30.

The square root of 1166123253 is about 34148.5468651303. The cubic root of 1166123253 is about 1052.5631267911.

Adding to 1166123253 its reverse (3523216611), we get a palindrome (4689339864).

The spelling of 1166123253 in words is "one billion, one hundred sixty-six million, one hundred twenty-three thousand, two hundred fifty-three".