1138002855 has 64 divisors (see below), whose sum is σ = 2093921280. Its totient is φ = 522368000.

The previous prime is 1138002851. The next prime is 1138002871. The reversal of 1138002855 is 5582008311.

It is a happy number.

1138002855 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 1138002855 - 2² = 1138002851 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138002851) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 381811 + ... + 384779.

It is an arithmetic number, because the mean of its divisors is an integer number (32717520).

Almost surely, 2^1138002855 is an apocalyptic number.

1138002855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1138002855 is a deficient number, since it is larger than the sum of its proper divisors (955918425).

1138002855 is a wasteful number, since it uses less digits than its factorization.

1138002855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3112.

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 1138002855 is about 33734.2979028762. The cubic root of 1138002855 is about 1044.0335394240.

The spelling of 1138002855 in words is "one billion, one hundred thirty-eight million, two thousand, eight hundred fifty-five".