1166311254 has 16 divisors (see below), whose sum is σ = 2332986048. Its totient is φ = 388709832.

The previous prime is 1166311253. The next prime is 1166311259. The reversal of 1166311254 is 4521136611.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166311253) 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, 44829 + ... + 65895.

It is an arithmetic number, because the mean of its divisors is an integer number (145811628).

Almost surely, 2^1166311254 is an apocalyptic number.

1166311254 is an abundant number, since it is smaller than the sum of its proper divisors (1166674794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1166311254 is a wasteful number, since it uses less digits than its factorization.

1166311254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30299.

The product of its digits is 4320, while the sum is 30.

The square root of 1166311254 is about 34151.2994481908. The cubic root of 1166311254 is about 1052.6196880756.

Adding to 1166311254 its reverse (4521136611), we get a palindrome (5687447865).

The spelling of 1166311254 in words is "one billion, one hundred sixty-six million, three hundred eleven thousand, two hundred fifty-four".