1197749553 has 64 divisors (see below), whose sum is σ = 2176591872. Its totient is φ = 565678080.

The previous prime is 1197749543. The next prime is 1197749557. The reversal of 1197749553 is 3559477911.

It is not a de Polignac number, because 1197749553 - 2⁴ = 1197749537 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1197749496 and 1197749505.

It is not an unprimeable number, because it can be changed into a prime (1197749557) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 198225 + ... + 204177.

It is an arithmetic number, because the mean of its divisors is an integer number (34009248).

Almost surely, 2^1197749553 is an apocalyptic number.

1197749553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1197749553 is a deficient number, since it is larger than the sum of its proper divisors (978842319).

1197749553 is a wasteful number, since it uses less digits than its factorization.

1197749553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6054.

The product of its digits is 1190700, while the sum is 51.

The square root of 1197749553 is about 34608.5185033974. The cubic root of 1197749553 is about 1061.9938599309.

The spelling of 1197749553 in words is "one billion, one hundred ninety-seven million, seven hundred forty-nine thousand, five hundred fifty-three".