1197985300 has 18 divisors (see below), whose sum is σ = 2599628318. Its totient is φ = 479194080.

The previous prime is 1197985253. The next prime is 1197985307. The reversal of 1197985300 is 35897911.

It can be written as a sum of positive squares in 3 ways, for example, as 353966596 + 844018704 = 18814^2 + 29052^2 .

It is a super-3 number, since 3×1197985300³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197985307) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5989827 + ... + 5990026.

Almost surely, 2^1197985300 is an apocalyptic number.

1197985300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1197985300 is an abundant number, since it is smaller than the sum of its proper divisors (1401643018).

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

1197985300 is a wasteful number, since it uses less digits than its factorization.

1197985300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11979867 (or 11979860 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 43.

The square root of 1197985300 is about 34611.9242458434. The cubic root of 1197985300 is about 1062.0635309908.

It can be divided in two parts, 11979 and 85300, that added together give a palindrome (97279).

The spelling of 1197985300 in words is "one billion, one hundred ninety-seven million, nine hundred eighty-five thousand, three hundred".