1313198 has 4 divisors (see below), whose sum is σ = 1969800. Its totient is φ = 656598.

The previous prime is 1313171. The next prime is 1313219. The reversal of 1313198 is 8913131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8913131 = 307 ⋅29033.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328298 + ... + 328301.

It is an arithmetic number, because the mean of its divisors is an integer number (492450).

2^1313198 is an apocalyptic number.

1313198 is a deficient number, since it is larger than the sum of its proper divisors (656602).

1313198 is an equidigital number, since it uses as much as digits as its factorization.

1313198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656601.

The product of its digits is 648, while the sum is 26.

The square root of 1313198 is about 1145.9485154229. The cubic root of 1313198 is about 109.5073839742.

The spelling of 1313198 in words is "one million, three hundred thirteen thousand, one hundred ninety-eight".