1145888055 has 48 divisors (see below), whose sum is σ = 2148662880. Its totient is φ = 561579264.

The previous prime is 1145888021. The next prime is 1145888057. The reversal of 1145888055 is 5508885411.

1145888055 is a `hidden beast` number, since 1 + 14 + 588 + 8 + 0 + 55 = 666.

1145888055 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1145888055 - 2¹⁰ = 1145887031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1145888055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145888057) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 128481 + ... + 137109.

It is an arithmetic number, because the mean of its divisors is an integer number (44763810).

Almost surely, 2^1145888055 is an apocalyptic number.

1145888055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1145888055 is a deficient number, since it is larger than the sum of its proper divisors (1002774825).

1145888055 is a wasteful number, since it uses less digits than its factorization.

1145888055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8880 (or 8877 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 45.

The square root of 1145888055 is about 33850.9683022510. The cubic root of 1145888055 is about 1046.4393541393.

The spelling of 1145888055 in words is "one billion, one hundred forty-five million, eight hundred eighty-eight thousand, fifty-five".