1197949 has 4 divisors (see below), whose sum is σ = 1230364. Its totient is φ = 1165536.

The previous prime is 1197947. The next prime is 1197953. The reversal of 1197949 is 9497911.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9497911 = 2287 ⋅4153.

It can be written as a sum of positive squares in 2 ways, for example, as 940900 + 257049 = 970^2 + 507^2 .

It is a cyclic number.

It is not a de Polignac number, because 1197949 - 2¹ = 1197947 is a prime.

It is a Duffinian number.

1197949 is a lucky 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 (1197941) 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, 16152 + ... + 16225.

It is an arithmetic number, because the mean of its divisors is an integer number (307591).

2^1197949 is an apocalyptic number.

It is an amenable number.

1197949 is a deficient number, since it is larger than the sum of its proper divisors (32415).

1197949 is an equidigital number, since it uses as much as digits as its factorization.

1197949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32414.

The product of its digits is 20412, while the sum is 40.

The square root of 1197949 is about 1094.5085655215. The cubic root of 1197949 is about 106.2052803732.

The spelling of 1197949 in words is "one million, one hundred ninety-seven thousand, nine hundred forty-nine".