1296198 has 24 divisors (see below), whose sum is σ = 2838888. Its totient is φ = 427392.

The previous prime is 1296187. The next prime is 1296209. The reversal of 1296198 is 8916921.

It is an interprime number because it is at equal distance from previous prime (1296187) and next prime (1296209).

It is a super-3 number, since 3×1296198³ = 6533340541010743176, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1590 + ... + 2262.

It is an arithmetic number, because the mean of its divisors is an integer number (118287).

2^1296198 is an apocalyptic number.

1296198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1296198 is an abundant number, since it is smaller than the sum of its proper divisors (1542690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1296198 is a wasteful number, since it uses less digits than its factorization.

1296198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788 (or 785 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 1296198 is about 1138.5069169750. The cubic root of 1296198 is about 109.0327876001.

The spelling of 1296198 in words is "one million, two hundred ninety-six thousand, one hundred ninety-eight".