1197512680 has 128 divisors (see below), whose sum is σ = 3331238400. Its totient is φ = 377275392.

The previous prime is 1197512669. The next prime is 1197512741. The reversal of 1197512680 is 862157911.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 978549 + ... + 979771.

It is an arithmetic number, because the mean of its divisors is an integer number (26025300).

Almost surely, 2^1197512680 is an apocalyptic number.

1197512680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1197512680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1665619200).

1197512680 is an abundant number, since it is smaller than the sum of its proper divisors (2133725720).

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

1197512680 is a wasteful number, since it uses less digits than its factorization.

1197512680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523 (or 1519 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 40.

The square root of 1197512680 is about 34605.0961564912. The cubic root of 1197512680 is about 1061.9238468925.

The spelling of 1197512680 in words is "one billion, one hundred ninety-seven million, five hundred twelve thousand, six hundred eighty".