1197491364 has 36 divisors (see below), whose sum is σ = 3139105424. Its totient is φ = 399163464.

The previous prime is 1197491353. The next prime is 1197491371. The reversal of 1197491364 is 4631947911.

It is a happy number.

1197491364 is a `hidden beast` number, since 11 + 97 + 491 + 3 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 615022 + ... + 616965.

Almost surely, 2^1197491364 is an apocalyptic number.

It is an amenable number.

1197491364 is an abundant number, since it is smaller than the sum of its proper divisors (1941614060).

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

1197491364 is a wasteful number, since it uses less digits than its factorization.

1197491364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232006 (or 1231992 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 1197491364 is about 34604.7881658016. The cubic root of 1197491364 is about 1061.9175460259.

The spelling of 1197491364 in words is "one billion, one hundred ninety-seven million, four hundred ninety-one thousand, three hundred sixty-four".