1391483168 has 12 divisors (see below), whose sum is σ = 2739482550. Its totient is φ = 695741568.

The previous prime is 1391483117. The next prime is 1391483189. The reversal of 1391483168 is 8613841931.

It can be written as a sum of positive squares in only one way, i.e., 1138927504 + 252555664 = 33748^2 + 15892^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21741893 + ... + 21741956.

Almost surely, 2^1391483168 is an apocalyptic number.

It is an amenable number.

1391483168 is a deficient number, since it is larger than the sum of its proper divisors (1347999382).

1391483168 is an equidigital number, since it uses as much as digits as its factorization.

1391483168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43483859 (or 43483851 counting only the distinct ones).

The product of its digits is 124416, while the sum is 44.

The square root of 1391483168 is about 37302.5892935062. The cubic root of 1391483168 is about 1116.4158297605.

The spelling of 1391483168 in words is "one billion, three hundred ninety-one million, four hundred eighty-three thousand, one hundred sixty-eight".