1312154668 has 48 divisors (see below), whose sum is σ = 2642048640. Its totient is φ = 563932800.

The previous prime is 1312154653. The next prime is 1312154681. The reversal of 1312154668 is 8664512131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 536328 + ... + 538768.

It is an arithmetic number, because the mean of its divisors is an integer number (55042680).

Almost surely, 2^1312154668 is an apocalyptic number.

It is an amenable number.

1312154668 is an abundant number, since it is smaller than the sum of its proper divisors (1329893972).

1312154668 is a wasteful number, since it uses less digits than its factorization.

1312154668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3118 (or 3116 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 1312154668 is about 36223.6755175396. The cubic root of 1312154668 is about 1094.7837519076.

Adding to 1312154668 its reverse (8664512131), we get a palindrome (9976666799).

The spelling of 1312154668 in words is "one billion, three hundred twelve million, one hundred fifty-four thousand, six hundred sixty-eight".