1311646148 has 6 divisors (see below), whose sum is σ = 2295380766. Its totient is φ = 655823072.

The previous prime is 1311646123. The next prime is 1311646151. The reversal of 1311646148 is 8416461131.

It can be written as a sum of positive squares in only one way, i.e., 1244537284 + 67108864 = 35278^2 + 8192^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 163955765 + ... + 163955772.

It is an arithmetic number, because the mean of its divisors is an integer number (382563461).

Almost surely, 2^1311646148 is an apocalyptic number.

It is an amenable number.

1311646148 is a deficient number, since it is larger than the sum of its proper divisors (983734618).

1311646148 is a wasteful number, since it uses less digits than its factorization.

1311646148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327911541 (or 327911539 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 1311646148 is about 36216.6556711135. The cubic root of 1311646148 is about 1094.6423073607.

The spelling of 1311646148 in words is "one billion, three hundred eleven million, six hundred forty-six thousand, one hundred forty-eight".