1312197 has 8 divisors (see below), whose sum is σ = 1841760. Its totient is φ = 828720.

The previous prime is 1312189. The next prime is 1312211. The reversal of 1312197 is 7912131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1312197 - 2³ = 1312189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11454 + ... + 11567.

It is an arithmetic number, because the mean of its divisors is an integer number (230220).

2^1312197 is an apocalyptic number.

It is an amenable number.

1312197 is a deficient number, since it is larger than the sum of its proper divisors (529563).

1312197 is a wasteful number, since it uses less digits than its factorization.

1312197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23043.

The product of its digits is 378, while the sum is 24.

The square root of 1312197 is about 1145.5116760645. The cubic root of 1312197 is about 109.4795524881.

The spelling of 1312197 in words is "one million, three hundred twelve thousand, one hundred ninety-seven".