1197591140 has 48 divisors (see below), whose sum is σ = 2688336000. Its totient is φ = 447025920.

The previous prime is 1197591119. The next prime is 1197591167. The reversal of 1197591140 is 411957911.

It is a junction number, because it is equal to n+sod(n) for n = 1197591094 and 1197591103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12890 + ... + 50609.

It is an arithmetic number, because the mean of its divisors is an integer number (56007000).

Almost surely, 2^1197591140 is an apocalyptic number.

1197591140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1197591140 is an abundant number, since it is smaller than the sum of its proper divisors (1490744860).

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

1197591140 is a wasteful number, since it uses less digits than its factorization.

1197591140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63572 (or 63570 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 38.

The square root of 1197591140 is about 34606.2297859793. The cubic root of 1197591140 is about 1061.9470384981.

The spelling of 1197591140 in words is "one billion, one hundred ninety-seven million, five hundred ninety-one thousand, one hundred forty".