1135555807 has 4 divisors (see below), whose sum is σ = 1151111440. Its totient is φ = 1120000176.

The previous prime is 1135555801. The next prime is 1135555819. The reversal of 1135555807 is 7085555311.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1135555807 is a prime.

It is a super-2 number, since 2×1135555807² = 2578973981622842498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1135555807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135555801) 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 3 ways as a sum of consecutive naturals, for example, 7777707 + ... + 7777852.

It is an arithmetic number, because the mean of its divisors is an integer number (287777860).

Almost surely, 2^1135555807 is an apocalyptic number.

1135555807 is a deficient number, since it is larger than the sum of its proper divisors (15555633).

1135555807 is an equidigital number, since it uses as much as digits as its factorization.

1135555807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15555632.

The product of its (nonzero) digits is 105000, while the sum is 40.

The square root of 1135555807 is about 33698.0089471173. The cubic root of 1135555807 is about 1043.2846738243.

The spelling of 1135555807 in words is "one billion, one hundred thirty-five million, five hundred fifty-five thousand, eight hundred seven".