1197491363 has 4 divisors (see below), whose sum is σ = 1201317528. Its totient is φ = 1193665200.

The previous prime is 1197491353. The next prime is 1197491371. The reversal of 1197491363 is 3631947911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3631947911 = 1667 ⋅2178733.

It is a cyclic number.

It is not a de Polignac number, because 1197491363 - 2⁶ = 1197491299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1197491303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1912613 + ... + 1913238.

It is an arithmetic number, because the mean of its divisors is an integer number (300329382).

Almost surely, 2^1197491363 is an apocalyptic number.

1197491363 is a deficient number, since it is larger than the sum of its proper divisors (3826165).

1197491363 is an equidigital number, since it uses as much as digits as its factorization.

1197491363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3826164.

The product of its digits is 122472, while the sum is 44.

The square root of 1197491363 is about 34604.7881513527. The cubic root of 1197491363 is about 1061.9175457303.

The spelling of 1197491363 in words is "one billion, one hundred ninety-seven million, four hundred ninety-one thousand, three hundred sixty-three".