1197055530 has 64 divisors (see below), whose sum is σ = 3482352000. Its totient is φ = 290194560.

The previous prime is 1197055507. The next prime is 1197055571. The reversal of 1197055530 is 355507911.

1197055530 is a `hidden beast` number, since 1 + 1 + 9 + 70 + 55 + 530 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198555 + ... + 204494.

It is an arithmetic number, because the mean of its divisors is an integer number (54411750).

Almost surely, 2^1197055530 is an apocalyptic number.

1197055530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1197055530 is an abundant number, since it is smaller than the sum of its proper divisors (2285296470).

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

1197055530 is a wasteful number, since it uses less digits than its factorization.

1197055530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403076 (or 403070 counting only the distinct ones).

The product of its (nonzero) digits is 23625, while the sum is 36.

The square root of 1197055530 is about 34598.4902849821. The cubic root of 1197055530 is about 1061.7887000217.

The spelling of 1197055530 in words is "one billion, one hundred ninety-seven million, fifty-five thousand, five hundred thirty".