1197149 has 4 divisors (see below), whose sum is σ = 1238460. Its totient is φ = 1155840.

The previous prime is 1197121. The next prime is 1197167. The reversal of 1197149 is 9417911.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 573049 + 624100 = 757^2 + 790^2 .

It is a cyclic number.

It is not a de Polignac number, because 1197149 - 2²⁰ = 148573 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20612 + ... + 20669.

It is an arithmetic number, because the mean of its divisors is an integer number (309615).

2^1197149 is an apocalyptic number.

It is an amenable number.

1197149 is a deficient number, since it is larger than the sum of its proper divisors (41311).

1197149 is an equidigital number, since it uses as much as digits as its factorization.

1197149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41310.

The product of its digits is 2268, while the sum is 32.

The square root of 1197149 is about 1094.1430436648. The cubic root of 1197149 is about 106.1816335277.

The spelling of 1197149 in words is "one million, one hundred ninety-seven thousand, one hundred forty-nine".