1312298 has 16 divisors (see below), whose sum is σ = 2245320. Its totient is φ = 569856.

The previous prime is 1312277. The next prime is 1312301. The reversal of 1312298 is 8922131.

It can be written as a sum of positive squares in 4 ways, for example, as 644809 + 667489 = 803^2 + 817^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

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 7 ways as a sum of consecutive naturals, for example, 1043 + ... + 1926.

2^1312298 is an apocalyptic number.

1312298 is a deficient number, since it is larger than the sum of its proper divisors (933022).

1312298 is a wasteful number, since it uses less digits than its factorization.

1312298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001.

The product of its digits is 864, while the sum is 26.

The square root of 1312298 is about 1145.5557603190. Note that the first 3 decimals coincide. The cubic root of 1312298 is about 109.4823613019.

It can be divided in two parts, 13122 and 98, that multiplied together give a square (1285956 = 1134²).

The spelling of 1312298 in words is "one million, three hundred twelve thousand, two hundred ninety-eight".