1133555445 has 64 divisors (see below), whose sum is σ = 2215572480. Its totient is φ = 545313600.

The previous prime is 1133555417. The next prime is 1133555453. The reversal of 1133555445 is 5445553311.

1133555445 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1133555445 - 2¹¹ = 1133553397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 191622 + ... + 197448.

It is an arithmetic number, because the mean of its divisors is an integer number (34618320).

Almost surely, 2^1133555445 is an apocalyptic number.

1133555445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1133555445 is a deficient number, since it is larger than the sum of its proper divisors (1082017035).

1133555445 is a wasteful number, since it uses less digits than its factorization.

1133555445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5983 (or 5977 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 1133555445 is about 33668.3151494101. The cubic root of 1133555445 is about 1042.6717071345.

The spelling of 1133555445 in words is "one billion, one hundred thirty-three million, five hundred fifty-five thousand, four hundred forty-five".