2150541540 has 144 divisors (see below), whose sum is σ = 7491469440. Its totient is φ = 489162240.

The previous prime is 2150541509. The next prime is 2150541557. The reversal of 2150541540 is 451450512.

2150541540 is a `hidden beast` number, since 2 + 1 + 505 + 4 + 154 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 261816 + ... + 269904.

Almost surely, 2^2150541540 is an apocalyptic number.

2150541540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2150541540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3745734720).

2150541540 is an abundant number, since it is smaller than the sum of its proper divisors (5340927900).

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

2150541540 is a wasteful number, since it uses less digits than its factorization.

2150541540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8322 (or 8317 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 2150541540 is about 46373.9316858081. The cubic root of 2150541540 is about 1290.7712352324.

The spelling of 2150541540 in words is "two billion, one hundred fifty million, five hundred forty-one thousand, five hundred forty".