1197275955 has 32 divisors (see below), whose sum is σ = 1980039168. Its totient is φ = 617136000.

The previous prime is 1197275953. The next prime is 1197275969. The reversal of 1197275955 is 5595727911.

It is not a de Polignac number, because 1197275955 - 2¹ = 1197275953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1197275898 and 1197275907.

It is not an unprimeable number, because it can be changed into a prime (1197275953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 534097 + ... + 536333.

It is an arithmetic number, because the mean of its divisors is an integer number (61876224).

Almost surely, 2^1197275955 is an apocalyptic number.

1197275955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1197275955 is a deficient number, since it is larger than the sum of its proper divisors (782763213).

1197275955 is a wasteful number, since it uses less digits than its factorization.

1197275955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3427.

The product of its digits is 992250, while the sum is 51.

The square root of 1197275955 is about 34601.6756097158. The cubic root of 1197275955 is about 1061.8538683742.

The spelling of 1197275955 in words is "one billion, one hundred ninety-seven million, two hundred seventy-five thousand, nine hundred fifty-five".