1197100 has 18 divisors (see below), whose sum is σ = 2597924. Its totient is φ = 478800.

The previous prime is 1197073. The next prime is 1197103. The reversal of 1197100 is 17911.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1197103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5886 + ... + 6085.

2^1197100 is an apocalyptic number.

1197100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1197100 is an abundant number, since it is smaller than the sum of its proper divisors (1400824).

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

1197100 is a wasteful number, since it uses less digits than its factorization.

1197100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11985 (or 11978 counting only the distinct ones).

The product of its (nonzero) digits is 63, while the sum is 19.

The square root of 1197100 is about 1094.1206514823. The cubic root of 1197100 is about 106.1801848161.

The spelling of 1197100 in words is "one million, one hundred ninety-seven thousand, one hundred".