2131654608 has 60 divisors (see below), whose sum is σ = 5987321028. Its totient is φ = 707973120.

The previous prime is 2131654583. The next prime is 2131654627. The reversal of 2131654608 is 8064561312.

It is a happy number.

2131654608 is a `hidden beast` number, since 2 + 131 + 65 + 460 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 858021264 + 1273633344 = 29292^2 + 35688^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13168 + ... + 66608.

Almost surely, 2^2131654608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2131654608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2993660514).

2131654608 is an abundant number, since it is smaller than the sum of its proper divisors (3855666420).

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

2131654608 is a wasteful number, since it uses less digits than its factorization.

2131654608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53732 (or 53723 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2131654608 is about 46169.8452239121. The cubic root of 2131654608 is about 1286.9814259721.

The spelling of 2131654608 in words is "two billion, one hundred thirty-one million, six hundred fifty-four thousand, six hundred eight".