1816001154 has 96 divisors (see below), whose sum is σ = 4452840000. Its totient is φ = 548190720.

The previous prime is 1816001153. The next prime is 1816001167. The reversal of 1816001154 is 4511006181.

1816001154 is a `hidden beast` number, since 1 + 8 + 1 + 600 + 1 + 1 + 54 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1816001153) 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 47 ways as a sum of consecutive naturals, for example, 2933457 + ... + 2934075.

It is an arithmetic number, because the mean of its divisors is an integer number (46383750).

Almost surely, 2^1816001154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1816001154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2226420000).

1816001154 is an abundant number, since it is smaller than the sum of its proper divisors (2636838846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1816001154 is a wasteful number, since it uses less digits than its factorization.

1816001154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101 (or 1084 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 1816001154 is about 42614.5650452988. The cubic root of 1816001154 is about 1220.0342985072.

The spelling of 1816001154 in words is "one billion, eight hundred sixteen million, one thousand, one hundred fifty-four".