1231197 has 8 divisors (see below), whose sum is σ = 1790880. Its totient is φ = 746160.

The previous prime is 1231193. The next prime is 1231199. The reversal of 1231197 is 7911321.

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

It is not a de Polignac number, because 1231197 - 2² = 1231193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231193) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18622 + ... + 18687.

It is an arithmetic number, because the mean of its divisors is an integer number (223860).

2^1231197 is an apocalyptic number.

It is an amenable number.

1231197 is a deficient number, since it is larger than the sum of its proper divisors (559683).

1231197 is a wasteful number, since it uses less digits than its factorization.

1231197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37323.

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

The square root of 1231197 is about 1109.5931686884. The cubic root of 1231197 is about 107.1788722100.

The spelling of 1231197 in words is "one million, two hundred thirty-one thousand, one hundred ninety-seven".