1197131616 has 48 divisors (see below), whose sum is σ = 3491636400. Its totient is φ = 399043584.

The previous prime is 1197131597. The next prime is 1197131627. The reversal of 1197131616 is 6161317911.

1197131616 is a `hidden beast` number, since 1 + 1 + 9 + 7 + 1 + 31 + 616 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 691921 + ... + 693648.

It is an arithmetic number, because the mean of its divisors is an integer number (72742425).

Almost surely, 2^1197131616 is an apocalyptic number.

1197131616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1197131616 is an abundant number, since it is smaller than the sum of its proper divisors (2294504784).

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

1197131616 is a wasteful number, since it uses less digits than its factorization.

1197131616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385588 (or 1385574 counting only the distinct ones).

The product of its digits is 6804, while the sum is 36.

The square root of 1197131616 is about 34599.5898241583. The cubic root of 1197131616 is about 1061.8111956485.

The spelling of 1197131616 in words is "one billion, one hundred ninety-seven million, one hundred thirty-one thousand, six hundred sixteen".