1183397755 has 4 divisors (see below), whose sum is σ = 1420077312. Its totient is φ = 946718200.

The previous prime is 1183397753. The next prime is 1183397773. The reversal of 1183397755 is 5577933811.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1183397755 - 2¹ = 1183397753 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1183397699 and 1183397708.

It is not an unprimeable number, because it can be changed into a prime (1183397753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118339771 + ... + 118339780.

It is an arithmetic number, because the mean of its divisors is an integer number (355019328).

Almost surely, 2^1183397755 is an apocalyptic number.

1183397755 is a deficient number, since it is larger than the sum of its proper divisors (236679557).

1183397755 is an equidigital number, since it uses as much as digits as its factorization.

1183397755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236679556.

The product of its digits is 793800, while the sum is 49.

The square root of 1183397755 is about 34400.5487601579. The cubic root of 1183397755 is about 1057.7350937026.

The spelling of 1183397755 in words is "one billion, one hundred eighty-three million, three hundred ninety-seven thousand, seven hundred fifty-five".