1312648 has 16 divisors (see below), whose sum is σ = 2496960. Its totient is φ = 646800.

The previous prime is 1312637. The next prime is 1312657. The reversal of 1312648 is 8462131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588 + ... + 1723.

It is an arithmetic number, because the mean of its divisors is an integer number (156060).

2^1312648 is an apocalyptic number.

It is an amenable number.

1312648 is a deficient number, since it is larger than the sum of its proper divisors (1184312).

1312648 is a wasteful number, since it uses less digits than its factorization.

1312648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388 (or 2384 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 1312648 is about 1145.7085144137. The cubic root of 1312648 is about 109.4920937002.

Adding to 1312648 its reverse (8462131), we get a palindrome (9774779).

The spelling of 1312648 in words is "one million, three hundred twelve thousand, six hundred forty-eight".